Press Release

Harmonic Announces Preliminary Fourth Quarter and Year End Results

January 29, 2008
    Strong Sales and Earnings Growth in 2007; Expanding Range of
                         Customers Worldwide;

    Strong Technology Leadership and Business Momentum Moving into
                                 2008

SUNNYVALE, Calif.--(BUSINESS WIRE)--Jan. 29, 2008--Harmonic Inc. (NASDAQ: HLIT), a leading provider of broadcast and on-demand video delivery solutions, today announced its preliminary and unaudited results for the quarter and year ended December 31, 2007.

For the fourth quarter of 2007, the Company reported net sales of $88.4 million, up 17% from $75.3 million in the fourth quarter of 2006. For the full year 2007, net sales were $312.2 million, up 26% from $247.7 million in 2006. The Company saw revenue growth in both domestic and international markets, with international sales representing 43% and 44% of revenue for the fourth quarter and for the full year of 2007, respectively. The strong revenue growth reflects sales to an expanding range of cable, satellite, telco and other customers that are deploying a growing array of new video products and solutions.

Gross margins increased sequentially from the third quarter of 2007, principally as a result of a larger than expected proportion of revenue from higher margin video processing solutions and software and services.

GAAP net income for the fourth quarter of 2007 was $13.3 million, or $0.15 per diluted share, up from $5.0 million, or $0.07 per diluted share, for the same period of 2006. For the full year 2007, GAAP net income was $30.1 million, or $0.36 per diluted share, up from $1.0 million, or $0.01 per diluted share in 2006.

Excluding non-cash accounting charges for stock-based compensation expense, the amortization of intangibles, and excess facilities costs, the non-GAAP net income for the fourth quarter of 2007 was $17.1 million, or $0.19 per diluted share, up from $9.9 million, or $0.13 per diluted share, for the same period of 2006. For the full year 2007, non-GAAP net income was $43.3 million, or $0.52 per diluted share, compared to $13.9 million, or $0.18 per share, for 2006. See "GAAP to non-GAAP Income Reconciliation" below for further information on the Company's use of non-GAAP financial measures. The results provided in this press release are subject to final audit and any adjustments required prior to filing of our annual report on Form 10-K for the year ended December 31, 2007.

As of December 31, 2007, the Company had cash, cash equivalents and short-term investments of $269.3 million, up from $99.0 million as of September 28, 2007. During the fourth quarter of 2007, Harmonic completed a public offering of 12.5 million shares of its common stock, which generated net proceeds to the Company of approximately $142 million.

"2007 was an outstanding year for Harmonic," said Patrick Harshman, President and Chief Executive Officer. "We are very pleased with our success in extending our product portfolio and expanding our global customer base. Our powerful new video encoding, video processing, video-on-demand and edge and access solutions have strengthened our technology leadership and driven our strong sales growth, improved gross margins and increased profitability. We have also improved the efficiency of our operations and our inventory management and strengthened our balance sheet. Our successful public offering during the fourth quarter provides us with a strong financial foundation to further grow the business, as well as to continue to pursue selective acquisitions to enhance our technology and market reach."

"We enter 2008 with a very strong competitive position in cable, satellite and telco markets worldwide, and a growing position in new broadcast and Internet video delivery markets. The powerful trends toward more high-definition, on-demand and anytime, anywhere video continue to intensify and reshape the video delivery marketplace. Going forward, we expect to continue to extend the breadth and depth of our product solutions to address these major trends, and intend to continue working with our expanding global customer base to take their video services in exciting new directions. We are very encouraged about our opportunities for growth in 2008 and beyond."

Business Outlook

The Company anticipates that the combined net sales for the first half of 2008 will be in a range of $165 to $175 million and gross margins will be 43% to 44% on a GAAP basis. Non-GAAP gross margins for the same period, excluding stock-based compensation expense and the amortization of intangibles, are anticipated to be in a range of 47% to 48%.

Conference Call Information

Harmonic will host a conference call today to discuss its financial results at 2:00 p.m. Pacific (5:00 p.m. Eastern). A listen-only broadcast of the conference call can be accessed on the Company's website at www.harmonicinc.com or by calling +1.706.634.9047 (conference identification code 30363329). The replay will be available after 5:00 p.m. Pacific at the same website address or by calling +1.706.645.9291 (conference identification code 30363329).

About Harmonic Inc.

Harmonic Inc. is a leading provider of versatile and high performance video solutions that enable service providers to efficiently deliver the next generation of broadcast and on-demand video services, including high definition, video-on-demand, network personal video recording and time-shifted TV. Cable, satellite, broadcast and telecom service providers can utilize Harmonic's digital video, broadband optical access and software solutions to offer consumers a compelling and personalized viewing experience.

Harmonic (NASDAQ: HLIT) is headquartered in Sunnyvale, California with R&D, sales and system integration centers worldwide. The Company's customers, including many of the world's largest communications providers, deliver services in virtually every country. Visit www.harmonicinc.com for more information.

Legal Notice Regarding Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including statements related to: our expectations regarding our final results for the fourth quarter and year ended December 31, 2007; our belief that our financial position will allow us to further grow our business, as well as to continue to pursue selective acquisitions to enhance our technology and market reach; our belief that we enter 2008 with a very strong competitive position in cable, satellite and telco markets worldwide, and a growing position in new broadcast and Internet video delivery markets; our belief that powerful trends toward more high-definition, on-demand and anytime, anywhere video will continue to intensify and reshape the video delivery marketplace; our expectation that we will continue to extend the breadth and depth of our product solutions to address these major trends, and that we will continue working with our expanding global customer base to take their video services in exciting new directions; and our expectations regarding net sales, GAAP gross margins and non-GAAP gross margins for the first half of 2008. Our expectations and beliefs regarding these matters may not materialize, and actual results in future periods are subject to risks and uncertainties that could cause actual results to differ materially from those projected. These risks include the possibility that: our final results for the fourth quarter and year ended December 31, 2007 will change based on final audit and any adjustments required prior to our filing of our annual report on Form 10-K for the year ended December 31, 2007; we will not identify or complete selective acquisitions; the trends toward more high-definition, on-demand and anytime, anywhere video will not continue to develop at its current pace, or at all; our products will not generate sales that are commensurate with our expectations; the mix of products sold and the effect it has on gross margins; delays or decreases in capital spending in the cable, satellite and telco industries; customer concentration and consolidation; general economic conditions; market acceptance of new or existing Harmonic products; losses of one or more key customers; risks associated with Harmonic's international operations; inventory management; the effect of competition; difficulties associated with rapid technological changes in Harmonic's markets; the need to introduce new and enhanced products; and risks associated with a cyclical and unpredictable sales cycle. The forward-looking statements contained in this press release are also subject to other risks and uncertainties, including those more fully described in Harmonic's filings with the Securities and Exchange Commission, including our annual report filed on Form 10-K for the year ended December 31, 2006, our quarterly report on Form 10-Q for the quarterly period ended September 28, 2007, and our current reports on Form 8-K. Harmonic does not undertake to update any forward-looking statements.

EDITOR'S NOTE - Product and company names used herein are trademarks or registered trademarks of their respective owners.


                            Harmonic Inc.
                Condensed Consolidated Balance Sheets
                            (In thousands)
                             (Unaudited)

                                   December 31, 2007 December 31, 2006
                                   ----------------- -----------------

Assets
Current assets:
  Cash and cash equivalents        $        129,005  $         33,454
  Short-term investments                    140,255            58,917
  Accounts receivable, net                   69,627            64,674
  Inventories                                34,064            42,116
  Deferred income taxes                       2,885                --
  Prepaid expenses and other
   current assets                            17,205            12,807
                                   ----------------- -----------------

    Total current assets                    393,041           211,968

Property and equipment, net                  14,082            14,816

Intangibles and other assets                 67,889            55,178
                                   ----------------- -----------------

                                   $        475,012  $        281,962
                                   ================= =================

Liabilities and stockholders'
 equity
Current liabilities:
  Current portion of long-term                   --
   debt                            $                 $            460
  Accounts payable                           20,500            33,863
  Income taxes payable                          481             7,098
  Deferred revenue                           37,375            29,052
  Accrued liabilities                        45,378            44,097
                                   ----------------- -----------------

    Total current liabilities               103,734           114,570

Accrued excess facilities costs,
 non-current                                  9,907            16,434
Other non-current liabilities                20,305             5,824
                                   ----------------- -----------------

  Total liabilities                         133,946           136,828
                                   ----------------- -----------------

Stockholders' equity:
  Common stock                            2,246,969         2,078,941
  Accumulated deficit                    (1,905,733)       (1,933,708)
  Accumulated other comprehensive
   loss                                        (170)              (99)
                                   ----------------- -----------------

    Total stockholders' equity              341,066           145,134
                                   ----------------- -----------------

                                   $        475,012  $        281,962
                                   ================= =================
                            Harmonic Inc.
           Condensed Consolidated Statements of Operations
                (In thousands, except per share data)
                             (Unaudited)

                     Three Months Ended             Year Ended
                 --------------------------- -------------------------
                 December 31,   December 31, December 31, December 31,
                      2007          2006         2007         2006
                 --------------------------- ------------ ------------

Net sales        $       88,374  $    75,338 $    312,188 $   247,684

Cost of sales            47,350       45,174      177,804     146,238
                 -------------- ------------ ------------ ------------

Gross profit             41,024       30,164      134,384     101,446
                 -------------- ------------ ------------ ------------

Operating
 expenses:
  Research and
   development           11,315        9,901       42,930      39,455
  Selling,
   general and
   administrative        17,961       16,621       64,318      65,243
  Write-off of
   acquired in-
   process
   technology                --           --          700          --
  Amortization of
   intangibles              160          291          525         470
                 -------------- ------------ ------------ ------------

   Total
    operating
    expenses             29,436       26,813      108,473     105,168
                 -------------- ------------ ------------ ------------

Income (loss)
 from operations         11,588        3,351       25,911      (3,722)

Interest and
 other income,
 net                      2,997        1,816        6,263       5,338
                 -------------- ------------ ------------ ------------

Income before
 income taxes            14,585        5,167       32,174       1,616

Provision for
 income taxes             1,293          126        2,100         609
                 -------------- ------------ ------------ ------------

Net income       $       13,292  $     5,041 $     30,074 $     1,007
                 ============== ============ ============ ============

Net income per
 share
  Basic          $         0.15  $      0.07 $       0.37 $      0.01
                 ============== ============ ============ ============

  Diluted        $         0.15  $      0.07 $       0.36 $      0.01
                 ============== ============ ============ ============

Shares used to
 compute net
 income per
 share:
  Basic                  88,469       75,670       81,882      74,639
                 ============== ============ ============ ============

  Diluted                90,377       76,547       83,249      75,183
                 ============== ============ ============ ============

                            Harmonic Inc.
           Condensed Consolidated Statements of Cash Flows
                            (In thousands)
                             (Unaudited)

                                               Year Ended
                                   -----------------------------------
                                   December 31, 2007 December 31, 2006
                                   ----------------- -----------------
Cash flows from operating
 activities:
  Net income                       $         30,074  $          1,007
  Adjustments to reconcile net
   income to cash provided by
   operating activities:
    Amortization of intangibles               5,338             2,200
    Write-off of acquired in-
     process technology                         700                --
    Depreciation                              6,661             7,383
    Stock-based compensation                  6,196             5,722
    Loss on disposal and impairment
     of fixed assets                             74               297
Changes in assets and liabilities:
    Accounts receivable                      (4,516)          (20,550)
    Inventories                               8,052            (3,224)
    Prepaid expenses and other
     assets                                  (5,717)           (4,316)
    Accounts payable                        (13,129)           13,396
    Deferred revenue                          9,715             7,774
    Income taxes payable                        207               493
    Accrued excess facilities costs          (6,684)             (877)
    Accrued and other liabilities            (1,258)             (671)
                                   ----------------- -----------------
     Net cash provided by operating
      activities                             35,713             8,634
                                   ----------------- -----------------

Cash flows from investing
 activities:
  Purchases of investments                 (178,476)          (70,398)
  Proceeds from sale of investments          98,300            84,820
  Acquisition of property and
   equipment, net                            (5,868)           (5,143)
  Acquisition of Rhozet, net of
   cash received                             (1,950)               --
  Purchase of Entone, Inc. note
   receivable                                (2,500)               --
  Acquisition of Entone
   Technologies, Inc., net of cash
   received                                  (2,465)          (26,232)
                                   ----------------- -----------------
     Net cash used in investing
      activities                            (92,959)          (16,953)
                                   ----------------- -----------------

Cash flows from financing
 activities:
  Proceeds from issuance of common
   stock, net                               153,337             4,778
  Excess tax benefits from stock-
   based compensation                            70                --
  Repayments under bank line and
   term loan                                   (460)             (812)
  Repayments of capital lease
   obligations                                  (72)              (82)
                                   ----------------- -----------------
     Net cash provided by financing
      activities                            152,875             3,884
                                   ----------------- -----------------

Effect of exchange rate changes on
 cash and cash equivalents                      (78)               71
                                   ----------------- -----------------

Net increase (decrease) in cash and
 cash equivalents                            95,551            (4,364)
Cash and cash equivalents at
 beginning of period                         33,454            37,818
                                   ----------------- -----------------

Cash and cash equivalents at end of
 period                            $        129,005  $         33,454
                                   ================= =================

                            Harmonic Inc.
                         Revenue Information
                            (In thousands)
                             (Unaudited)

                   Three Months Ended              Year Ended
              ---------------------------- ---------------------------
               December 31,  December 31,  December 31,  December 31,
                   2007          2006          2007          2006
              -------------- ------------- ------------- -------------

Product
Video
 Processing   $  42,283  48% $30,492  41%  $135,085  43% $ 96,855  39%
Edge & Access    30,083  34%  32,500  43%   125,957  40%  109,529  44%
Software,
 Services and
 Other           16,008  18%  12,346  16%    51,146  17%   41,300  17%
              -------------- ------------- ------------- -------------
   Total      $  88,374 100% $75,338 100%  $312,188 100% $247,684 100%
              =========      =======       ========      ========

Geography
United States $  50,264  57% $44,449  59%  $175,711  56% $126,420  51%
International    38,110  43%  30,889  41%   136,477  44%  121,264  49%
              -------------- ------------- ------------- -------------
   Total      $  88,374 100% $75,338 100%  $312,188 100% $247,684 100%
              =========      =======       ========      ========

Market
Cable         $  47,479  54% $53,236  71%  $186,789  60% $155,736  63%
Satellite        21,637  24%   8,405  11%    65,343  21%   26,189  11%
Telco & Other    19,258  22%  13,697  18%    60,056  19%   65,759  26%
              -------------- ------------- ------------- -------------
   Total      $  88,374 100% $75,338 100%  $312,188 100% $247,684 100%
              =========      =======       ========      ========

Use of Non-GAAP Financial Measures

In establishing operating budgets, managing its business performance, and setting internal measurement targets, the Company excludes a number of items required by GAAP. Management believes that these accounting charges and credits, most of which are non-cash or non-recurring in nature, are not useful in managing its operations and business. Historically, the Company has also publicly presented these supplemental non-GAAP measures in order to assist the investment community to see the Company "through the eyes of management," and thereby enhance understanding of its operating performance. The non-GAAP measures presented here are gross margins, operating expense, net income and net income per share. The presentation of non-GAAP information is not intended to be considered in isolation or as a substitute for results prepared in accordance with GAAP and is not necessarily comparable to non-GAAP results published by other companies. A reconciliation of non-GAAP financial measures to GAAP financial measures is included with the financial statements contained in this press release. The non-GAAP adjustments described below have historically been excluded from our non-GAAP measures. These adjustments, and the basis for excluding them, are:

-- Restructuring Activities

       -- Severance Costs

          The Company has incurred severance costs in cost of sales
           and in operating expenses in connection with the closing of
           its manufacturing and research and development facilities
           in the UK. In addition, severance costs were incurred due
           to a reorganization of its senior management following the
           appointment of a new Chief Executive Officer. The Company
           excludes one-time costs of this nature in evaluating its
           ongoing operational performance. We believe that these
           costs do not reflect expected future expenses nor do they
           provide a meaningful comparison of current versus prior
           operating results.

       -- Excess Facilities

          The Company has incurred excess facilities charges and
           credits in operating expenses due to adjustments related to
           vacating and subleasing portions of its Sunnyvale campus
           and to the closing of its manufacturing and research and
           development facilities in the UK. The Company excludes one-
           time costs of this nature in evaluating its ongoing
           operational performance. We believe that these costs do not
           reflect expected future expenses nor do they provide a
           meaningful comparison of current versus prior operating
           results.

       -- Product Discontinuance

          In connection with the restructuring of its operations in
           the UK, the Company recorded charges for excess inventory
           in connection with discontinued products. The Company
           excludes one-time costs of this nature in evaluating its
           ongoing operational performance. We believe that these
           costs do not reflect expected future expenses nor do they
           provide a meaningful comparison of current versus prior
           operating results.

-- Non-Cash Items

       -- Stock-Based Compensation Expense

          The Company has incurred stock-based compensation expense in
           cost of sales and operating expenses as required under FAS
           123R. The Company excludes stock-based compensation expense
           because it believes that this measure is not relevant in
           evaluating its core operating performance, either for
           internal measurement purposes or for period-to-period
           comparisons and benchmarking against other public
           companies.

       -- Impairment and Amortization of Intangibles

          The Company has incurred amortization of intangibles and has
           taken a charge for acquired in-process technology related
           to acquisitions the Company has made. In addition, the
           Company recorded an impairment of its fixed assets and
           intangibles due to its decision to discontinue a product
           line. Management excludes these items when it evaluates its
           core operating performance. We believe that eliminating
           these expenses is useful to investors when comparing
           historical and prospective results and comparing such
           results to other public companies because these expenses
           will vary if and when the Company makes additional
           acquisitions.
                             Harmonic Inc.
                GAAP to Non-GAAP Income Reconciliation
                             (Unaudited)

                     Three Months Ended         Three Months Ended
                       December 31, 2007         December 31, 2006
                  -------------------------- -------------------------
                   Gross  Operating   Net     Gross  Operating  Net
(In thousands)     Margin   Expense  Income   Margin   Expense  Income
                  ----------------------------------------------------

GAAP              $ 41,024 $ 29,436 $13,292  $ 30,164 $ 26,813 $ 5,041

Cost of sales
 related to
 severance costs                                  287              287
Cost of sales
 related to
 product
 discontinuance                                 1,134            1,134
Cost sales related
 to stock based
 compensation
 expense               280              280       202              202
Research and
 development
 expense related
 to stock based
 compensation
 expense                       (573)    573               (334)    334
Selling, general
 and
 administrative
 expense related
 to severance
 costs                                                    (198)    198
Selling, general
 and
 administrative
 expense related
 to excess
 facilities costs              (482)    482               (116)    116
Selling, general
 and
 administrative
 expense related
 to stock based
 compensation
 expense                       (868)    868               (810)    810
Impairment and
 amortization of
 fixed assets and
 intangibles         1,474     (160)  1,634     1,237     (491)  1,728

                  -------------------------- -------------------------
Non-GAAP          $ 42,778 $ 27,353 $17,129  $ 33,024 $ 24,864 $ 9,850
                  ========================== =========================

GAAP income per
 share - basic                      $  0.15                    $  0.07
                                    ========                   =======
GAAP income per
 share -diluted                     $  0.15                    $  0.07
                                    ========                   =======
Non-GAAP income
 per share - basic                  $  0.19                    $  0.13
                                    ========                   =======
Non-GAAP income
 per share
 -diluted                           $  0.19                    $  0.13
                                    ========                   =======
Shares used in
 per-share
 calculation -
 basic                               88,469                     75,670
                                    ========                   =======
Shares used in
 per-share
 calculation -
 diluted                             90,377                     76,547
                                    ========                   =======


                   Year Ended December 31,   Year Ended December 31,
                             2007                       2006
                  -------------------------- -------------------------
                   Gross  Operating   Net     Gross  Operating  Net
                   Margin   Expense  Income   Margin   Expense  Income
                  ----------------------------------------------------

GAAP              $134,384 $108,473 $30,074  $101,446 $105,168 $ 1,007

Cost of sales
 related to
 severance costs       188              188       587              587
Cost of sales
 related to
 product
 discontinuance        772              772     1,134            1,134
Cost of sales
 related to stock
 based
 compensation
 expense               998              998       957              957
Research and
 development
 expense related
 to severance
 costs                         (334)    334                (12)     12
Research and
 development
 expense related
 to stock based
 compensation
 expense                     (2,012)  2,012             (1,638)  1,638
Selling, general
 and
 administrative
 expense related
 to severance
 costs                         (131)    131               (848)    848
Selling, general
 and
 administrative
 expense related
 to stock based
 compensation
 expense                     (3,186)  3,186             (3,124)  3,124
Selling, general
 and
 administrative
 expense related
 to excess
 facilities
 expense
 (recovery)                     331    (331)            (2,174)  2,174
Impairment and
 amortization of
 fixed assets and
 intangibles         4,740   (1,225)  5,965     1,730     (670)  2,400

                  -------------------------- -------------------------
Non-GAAP          $141,082 $101,916 $43,329  $105,854 $ 96,702 $13,881
                  ========================== =========================

GAAP income per
 share - basic                      $  0.37                    $  0.01
                                    ========                   =======
GAAP income per
 share -diluted                     $  0.36                    $  0.01
                                    ========                   =======
Non-GAAP income
 per share - basic                  $  0.53                    $  0.19
                                    ========                   =======
Non-GAAP income
 per share
 -diluted                           $  0.52                    $  0.18
                                    ========                   =======
Shares used in
 per-share
 calculation -
 basic                               81,882                     74,639
                                    ========                   =======
Shares used in
 per-share
 calculation -
 diluted                             83,249                     75,183
                                    ========                   =======

    CONTACT: Harmonic Inc.
             Robin N. Dickson, Chief Financial Officer
             408-542-2500
             or
             StreetConnect
             Michael Newman, Investor Relations
             408-542-2760

    SOURCE: Harmonic Inc.