<PAGE>   1
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-Q

       QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES
       EXCHANGE ACT OF 1934

                 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2000
                        COMMISSION FILE NUMBER: 333-43339

                             KNOLOGY BROADBAND, INC.
                             -----------------------
             (Exact name of registrant as specified in its charter)

              DELAWARE                                   58-2203141
---------------------------------------       ---------------------------------
   (State or other jurisdiction of                    (I.R.S. Employer
    incorporation or organization)                    Identification No.)

        KNOLOGY BROADBAND, INC.
        1241 O.G. SKINNER DRIVE
          WEST POINT, GEORGIA                              31833
---------------------------------------       ---------------------------------
(Address of principal executive offices)                 (Zip Code)

       Registrant's telephone number, including area code: (706) 645-8553



         Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.

                              Yes [X]*    No [ ]



         The aggregate market value of the voting stock held by non-affiliates
is not applicable as no public market exists for the voting stock of the
registrant



         As of April 30, 1999, there were 2,476 shares of the registrant's
Common Stock outstanding and 49,851 shares of the registrant's Preferred Stock
outstanding.



         The registrant meets the conditions set forth in General Instructions
H(1)(a) and (b) of Form 10-Q and is filing this Form with the reduced disclosure
format.

--------------
*The registrant does not have any class of equity registered under the
Securities Exchange Act of 1934 and files periodic reports with the Securities
and Exchange Commission pursuant to contractual obligations with third parties.

<PAGE>   2


                    KNOLOGY BROADBAND, INC. AND SUBSIDIARIES
                          QUARTER ENDED MARCH 31, 2000
                                      INDEX


<TABLE>
<CAPTION>
PART I                     FINANCIAL INFORMATION                                                              PAGE
<S>      <C>               <C>                                                                                <C>

         ITEM 1            FINANCIAL STATEMENTS...............................................................   2
                           Consolidated Balance Sheets........................................................   2
                           Consolidated Statements of Operations..............................................   3
                           Consolidated Statement of Cash Flows...............................................   4
                           Notes to Consolidated Financial Statements.........................................   5

         ITEM 2            MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
                             RESULTS OF OPERATIONS............................................................   7

         ITEM 3            QUALITATIVE AND QUANTITATIVE DISCLOSURES ABOUT MARKET RISK.........................  10

PART II                    OTHER INFORMATION

         ITEM 6            EXHIBITS AND REPORTS ON FORM 8-K...................................................  11
</TABLE>


                                       1

<PAGE>   3
                         PART I - FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS

                    KNOLOGY BROADBAND, INC. AND SUBSIDIARIES

                     CONDENSED CONSOLIDATED BALANCE SHEETS
                                 MARCH 31, 2000


<TABLE>
<CAPTION>
                                                                               March 31,             December 31,
                                                                                 2000                     1999
                                                                             -------------           -------------
                                                                              (Unaudited)
<S>                                                                          <C>                     <C>
                                   ASSETS

CURRENT ASSETS:
      Cash and cash equivalents                                              $      20,472           $   6,249,756
      Marketable securities                                                             --               6,069,461
      Affiliate receivable                                                      14,776,245              18,334,038
      Accounts receivable, net                                                   4,846,289               5,514,724
      Prepaid expenses and other                                                 1,130,476                 750,246
                                                                             -------------           -------------
               Total current assets                                             20,773,482              36,918,225

PROPERTY AND EQUIPMENT, net                                                    270,995,321             256,298,360

INVESTMENTS                                                                      1,417,064               1,412,064

INTANGIBLE AND OTHER ASSETS, net                                                35,937,563              39,267,103

OTHER                                                                              178,385                 136,696
                                                                             -------------           -------------
Total assets                                                                 $ 329,301,815           $ 334,032,448
                                                                             =============           =============


               LIABILITIES AND STOCKHOLDERS' (DEFICIT) EQUITY

CURRENT LIABILITIES:
      Current portion of long-term debt                                      $      12,174           $      12,174
      Accounts payable                                                          14,420,190              13,395,068
      Advances from parent                                                      22,737,811              14,975,753
      Accrued liabilities                                                        4,450,153               5,587,863
      Unearned revenue                                                           2,876,071               2,624,308
                                                                             -------------           -------------
               Total current liabilities                                        44,496,399              36,595,166

NONCURRENT LIABILITIES:
      Long-term notes payable                                                   19,110,520              19,110,520
      Bonds payable, net of discount                                           328,586,684             319,233,545
                                                                             -------------           -------------
               Total noncurrent liabilities                                    347,697,204             338,344,065
                                                                             -------------           -------------
               Total liabilities                                               392,193,603             374,939,231

WARRANTS                                                                                --                      --

STOCKHOLDERS' (DEFICIT) EQUITY
      Convertible preferred stock                                                      499                     507
      Common Stock                                                                       6                       6
      Additional paid-in capital                                                69,277,792              69,277,784
      Accumulated deficit                                                     (132,170,085)           (110,154,381)
      Unrealized (loss) gain on marketable securities (Note 4)                          --                 (30,699)
                                                                             -------------           -------------
               Total stockholders' (deficit) equity                            (62,891,788)            (40,906,783)
                                                                             -------------           -------------
               Total liabilities and stockholders' (deficit) equity          $ 329,301,815           $ 334,032,448
                                                                             =============           =============
</TABLE>


   The accompanying notes are an integral part of these condensed consolidated
                              financial statements.


                                       2

<PAGE>   4

                    KNOLOGY BROADBAND, INC. AND SUBSIDIARIES

                 CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                                   (UNAUDITED)

<TABLE>
<CAPTION>
                                                                Three Months Ended
                                                                    March 31,
                                                           2000                   1999
                                                       ------------           ------------
<S>                                                    <C>                    <C>


OPERATING REVENUES                                     $ 13,293,597           $ 10,030,805
                                                       ------------           ------------

OPERATING EXPENSES:
       Cost of services                                   6,195,069              4,837,541
       Selling, operating, and administrative            10,297,409              8,524,017
       Depreciation and amortization                     11,376,844              7,733,899
                                                       ------------           ------------
                   Total                                 27,869,322             21,095,457
                                                       ------------           ------------

OPERATING LOSS                                          (14,575,725)           (11,064,652)

OTHER INCOME AND EXPENSES:
       Interest income                                       71,745                722,159
       Interest expense                                  (9,288,222)            (7,795,748)
       Other income (expense), net                           20,832                 45,161
                                                       ------------           ------------
                   Total                                 (9,195,645)            (7,028,428)
                                                       ------------           ------------

LOSS BEFORE INCOME TAX BENEFIT                          (23,771,370)           (18,093,080)

INCOME TAX BENEFIT                                        1,755,666              3,883,133
                                                       ------------           ------------

NET LOSS                                               $(22,015,704)          $(14,209,947)
                                                       ============           ============
</TABLE>




   The accompanying notes are an integral part of these condensed consolidated
                              financial statements.


                                        3

<PAGE>   5

                    KNOLOGY BROADBAND, INC. AND SUBSIDIARIES

                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (UNAUDITED)


<TABLE>
<CAPTION>
                                                                                     Three Months Ended March 31,
                                                                                     2000                    1999
                                                                                  ------------           ------------
<S>                                                                               <C>                    <C>

CASH FLOWS FROM OPERATING ACTIVITIES:
       Net loss                                                                   $(22,015,704)          $(14,209,947)
       Adjustments to reconcile net loss to net cash
          (used in) provided by operating activities:
             Depreciation and amortization                                          11,376,844              7,733,899
             Gain on disposition of assets                                              (2,874)                (5,416)
             Amortization of bond discount                                           3,994,707              3,556,851
             Changes in operating assets and liabilities:
                 Accounts receivable                                                   668,430                433,073
                 Accounts receivable - affiliate                                     3,557,793             (1,459,491)
                 Prepaid expenses and other                                           (391,220)              (422,045)
                 Accounts payable                                                    1,025,122             11,597,377
                 Accrued liabilities and interest                                    4,220,722            (12,039,916)
                 Unearned revenue                                                      251,763                 28,752
                                                                                  ------------           ------------
                     Total adjustments                                              24,701,287              9,423,084
                                                                                  ------------           ------------
                     Net cash provided by (used in) operating activities             2,685,583             (4,786,863)
                                                                                  ------------           ------------

CASH FLOWS FROM INVESTING ACTIVITIES:
       Capital expenditures, net of retirements                                    (22,730,833)           (19,452,076)
       Investments                                                                      (5,000)              (264,891)
       Organizational and franchise cost expenditures, net                             (25,271)                54,361
       Proceeds form sales of assets                                                    14,718                     --
       Proceeds from sales of marketable securities, net                             6,069,461             19,573,170
                                                                                  ------------           ------------
                 Net cash provided by (used in) investing activities               (16,676,925)               (89,436)
                                                                                  ------------           ------------

CASH FLOWS FROM FINANCING ACTIVITIES:
       Advances from affiliates                                                      7,762,058                     --
       Expenditures related to issuance of debt                                                                19,723
       Principal payments on debt                                                           --                 (2,932)
                                                                                  ------------           ------------
                 Net cash provided by financing activities                           7,762,058                 16,791
                                                                                  ------------           ------------

NET DECREASE IN CASH                                                                (6,229,284)            (4,859,508)

CASH AT BEGINNING OF PERIOD                                                          6,249,756              4,859,508
                                                                                  ------------           ------------

CASH AT END OF PERIOD                                                             $     20,472           $         --
                                                                                  ============           ============



SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:

       Cash paid during the period for interest                                   $    494,463           $      7,124
</TABLE>


                                       4
<PAGE>   6

                  KNOLOGY BROADBAND, INC. AND SUBSIDIARIES

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS



                                 MARCH 31, 2000
                                   (UNAUDITED)



1.       ORGANIZATION AND NATURE OF BUSINESS

                  Knology Broadband, Inc. (the "Company"), formerly KNOLOGY
         Holdings, Inc., is a wholly owned subsidiary of Knology, Inc. Knology
         Broadband offers residential and business customers broadband
         communications services ("Broadband Services"), including analog and
         digital cable television, local and long distance telephone, high-speed
         Internet access service, and broadband carrier services ("BCS"), using
         high capacity hybrid fiber/coaxial networks that are two-way
         interactive ("Interactive Broadband Networks"). The Company operates
         Interactive Broadband Networks in six metropolitan areas (collectively
         the "Systems"): Huntsville and Montgomery, Alabama; Columbus and
         Augusta, Georgia; Panama City, Florida; and Charleston, South Carolina
         and plans to expand to additional mid-sized cities in the southeastern
         United States.

                  The Company has experienced operating losses as a result of
         the expansion of the advanced broadband communications networks and
         services into new and existing markets. Management expects to continue
         the focus on increasing the customer base and expanding the broadband
         operations. Accordingly, operating expenses and capital expenditures
         will continue to increase with the extension of the broadband
         communications networks in existing and new markets in accordance with
         the business plan. While management expects its expansion plans to
         result in profitability, there can be no assurance that growth in the
         Company's revenue or customer base will continue or that the Company
         will be able to achieve or sustain profitability and/or positive cash
         flow.


2.       BASIS OF PRESENTATION

                  The accompanying unaudited condensed consolidated financial
         statements of the Company have been prepared in accordance with
         generally accepted accounting principles for interim financial
         information and with the instructions to Form 10-Q and Article 10 of
         Regulation S-X. Accordingly, they do not include all of the information
         and footnotes required by generally accepted accounting principles for
         complete financial statements. In the opinion of management, all
         adjustments considered necessary for the fair presentation of the
         financial statements have been included, and the financial statements
         present fairly the financial position and results of operations for the
         interim periods presented. Operating results for the three months ended
         March 31, 2000 are not necessarily indicative of the results that may
         be expected for the year ended December 31, 2000. These financial
         statements should be read in conjunction with the consolidated
         financial statements and notes thereto, together with management's
         discussion and analysis of financial condition and results of
         operations contained in the Company's 1999 Annual Report on Form 10-K
         for the year ended December 31, 1999.


                  Certain amounts included in the 1999 financial statements have
         been reclassified to conform with the 2000 financial statements.


                                       5

<PAGE>   7


3.       SEGMENT INFORMATION

                  Effective January 1998, the Company adopted SFAS 131,
         "Disclosures about segments of an Enterprise and Related Information,"
         which established revised standards for the reporting of financial and
         descriptive information about operating segments in financial
         statements.

                  The Company owns and operates advanced hybrid fiber-coaxial
         networks and provides residential and business customers broadband
         communications services, including analog and digital cable television,
         local and long distance telephone, data and broadband carrier services
         ("BCS"). Data services include high-speed Internet access via cable
         modems. BCS includes local transport services such as local Internet
         transport, special access, local private line, and local loop services.

                  While management of the Company monitors the revenue generated
         from each of the various broadband services, operations are managed and
         financial performance is evaluated based upon the delivery of multiple
         services to customers over a single network. As a result of multiple
         services being provided over a single network, many expenses and assets
         are shared related to providing the various broadband services to
         customers. Management believes that any allocation of the shared
         expenses or assets to the broadband services would be subjective and
         impractical.



                  Revenues by broadband communications service are as follows:

<TABLE>
<CAPTION>
                                       THREE MONTHS ENDED MARCH 31,
                                          2000             1999
                                       ----------      ------------
<S>                                   <C>              <C>

       Cable television               $ 9,472,847      $ 8,185,103
       Telephone                        2,517,330        1,547,460
       Data and BCS                     1,303,420          298,242
                                      -----------      -----------
       Consolidated revenues          $13,293,597      $10,030,805
                                      ===========      ===========
</TABLE>


                                       6
<PAGE>   8


ITEM 2.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
          AND RESULTS OF OPERATIONS

         THE MANAGEMENT'S DISCUSSION AND ANALYSIS AND OTHER PORTIONS OF THIS
REPORT INCLUDE "FORWARD-LOOKING" STATEMENTS WITHIN THE MEANING OF THE FEDERAL
SECURITIES LAWS, INCLUDING THE PRIVATE SECURITIES LITIGATION REFORM ACT, THAT
ARE SUBJECT TO FUTURE EVENTS, RISKS AND UNCERTAINTIES THAT COULD CAUSE ACTUAL
RESULTS TO DIFFER MATERIALLY FROM THOSE EXPRESSED OR IMPLIED. IMPORTANT FACTORS
THAT EITHER INDIVIDUALLY OR IN THE AGGREGATE COULD CAUSE ACTUAL RESULTS TO
DIFFER MATERIALLY FROM THOSE EXPRESSED INCLUDE, WITHOUT LIMITATION, (1) THAT WE
WILL NOT RETAIN OR GROW OUR CUSTOMER BASE, (2) THAT WE WILL FAIL TO BE
COMPETITIVE WITH EXISTING AND NEW COMPETITORS, (3) THAT WE WILL NOT ADEQUATELY
RESPOND TO TECHNOLOGICAL DEVELOPMENTS IMPACTING OUR INDUSTRY AND MARKETS, (4)
THAT NEEDED FINANCING WILL NOT BE AVAILABLE IF AND AS NEEDED, (5) THAT A
SIGNIFICANT CHANGE IN THE GROWTH RATE OF THE OVERALL U.S. ECONOMY WILL OCCUR
SUCH THAT CONSUMER AND CORPORATE SPENDING ARE MATERIALLY IMPACTED, AND (6) THAT
SOME OTHER UNFORESEEN DIFFICULTIES OCCUR. THIS LIST IS INTENDED TO IDENTIFY ONLY
CERTAIN OF THE PRINCIPAL FACTORS THAT COULD CAUSE ACTUAL RESULTS TO DIFFER
MATERIALLY FROM THOSE DESCRIBED IN THE FORWARD-LOOKING STATEMENTS INCLUDED
HEREIN.

         The following is a discussion of our consolidated financial condition
and results of operations for the three ended March 31, 2000 and certain factors
that are expected to affect our prospective financial condition. The following
discussion and analysis should be read in conjunction with the financial
statements and notes thereto and other financial data included elsewhere in this
Form 10-Q.

GENERAL

          We offer residential and business customers Broadband Services,
including analog and digital cable television, local and long distance
telephone, high-speed Internet access service, and broadband carrier services.
We provide these Broadband Services using high capacity hybrid fiber-coaxial
networks that are two-way interactive. We own, operate and manage Interactive
Broadband Networks in six metropolitan areas: Huntsville and Montgomery,
Alabama; Columbus and Augusta, Georgia; Panama City, Florida and Charleston,
South Carolina and plan to expand to additional mid-sized cities in the
southeastern United States.

         We have been expanding our networks and adding corporate staffing
necessary to grow the business into new markets. Accordingly, our operating
expenses and capital expenditures have increased significantly and are expected
to continue to increase with the continued expansion of the existing systems and
into new markets.

         We have incurred net losses in each quarter since our inception, and as
of March 31, 2000, the accumulated deficit had reached approximately $132.2
million. We anticipate incurring net losses during the next several years while
continuing to expand operations, and as a result of substantially increased
depreciation and amortization from the construction of the new networks and
operating expenses incurred in building the customer base. There can be no
assurance that growth in revenue or the subscriber base will continue or that we
will be able to achieve or sustain profitability or positive cash flow.

REVENUES AND EXPENSES

We can group our revenues into four categories: video revenues, telephone
revenues, Internet revenues and other revenues.

-        Video revenues. Our video revenues consist of fixed monthly fees for
         basic, premium and digital cable television services, as well as fees
         from pay-per-view movies and events such as boxing matches and
         concerts, that involve a charge for each viewing. Video revenues
         accounted for


                                       7

<PAGE>   9

         approximately 71% and 82% of our consolidated revenues for the three
         months ended March 31, 2000 and March 31, 1999, respectively.

-        Telephone revenues. Our telephone revenues consist primarily of fixed
         monthly fees for local service, enhanced services such as call waiting
         and voice mail and usage fees for long distance service. Telephone
         revenues accounted for approximately 19% and 15% of our consolidated
         revenues for the three months ended March 31, 2000 and March 31, 1999,
         respectively.

-        Internet revenues and other revenues. Our Internet revenues consist
         primarily of fixed monthly fees for Internet access service and rental
         of cable modems. Other revenues resulted principally from broadband
         carrier services and video production services. These combined revenues
         accounted for approximately 10% and 3% of our consolidated revenues for
         the three months ended March 31, 2000 and March 31, 1999, respectively.

Our operating expenses include cost of services expenses, selling, operations
and administrative expenses and depreciation and amortization expenses.

Cost of services expenses include:

-        Video cost of services. Video cost of services consist primarily of
         monthly fees to the National Cable Television Cooperative and other
         programming providers, and are generally based on the average number of
         subscribers to each program. Programming costs as a percentage of video
         revenue were approximately 43.4% and 43.2% for the three months ended
         March 31, 2000 and 1999, respectively. Programming costs is our largest
         single cost and we expect this to continue. Since this cost is based on
         numbers of subscribers, it will increase as we add more subscribers.

-        Telephone and Internet access services. Cost of services related to our
         telephone and Internet access services include costs of Internet
         transport and telephone switching, and interconnection and transport
         charges payable to local and long distance carriers.

Selling, operations and administrative expenses include:

-        Sales and marketing costs. Sales and marketing costs include the cost
         of sales and marketing personnel and advertising and promotional
         expenses.

-        Network operations and maintenance expenses. Network operations and
         maintenance expenses include payroll and departmental costs incurred
         for network design and maintenance monitoring.

-        Customer service expenses. Customer service expenses include payroll
         and departmental costs incurred for customer service representatives
         and management.

-        General and administrative expenses. General and administrative
         expenses consist of corporate and subsidiary general management and
         administrative costs.

         Depreciation and amortization expenses include depreciation of our
interactive broadband networks and equipment, and amortization of cost in excess
of net assets and other intangible assets related to acquisitions.


                                       8

<PAGE>   10


RESULTS OF OPERATION

Three Months Ended March 31, 2000 Compared to Three Months Ended March 31, 1999

         Revenues. Operating revenues increased 33.0% from $10.0 million for the
three months ended March 31, 1999 to $13.3 million for the three months ended
March 31, 2000. Operating revenues from video services increased 15.9% from $8.2
million for the three months ended March 31, 1999 to $9.4 million for the same
period in 2000. Operating revenues from voice services increased 66.7% from $1.5
million for the three months ended March 31, 1999 to $2.5 million for the same
period in 2000. Operating revenue from data and other services increased 333%
from $298,000 for the three months ended March 31, 1999 to $1.3 million for the
same period in 2000, $1.2 million of which were revenues from data services. The
increased revenues for voice and data and other services are primarily due to an
increase in the number of connections, from 91,241 during the three months ended
March 31, 1999 to 122,305 for the same period in 2000. The additional
connections resulted primarily from the extension of our broadband networks in
Montgomery, Columbus, Panama City, Augusta and Charleston.

         Expenses. Our operating expenses, excluding depreciation and
amortization, increased 23.1%, from $13.4 million for the three months ended
March 31, 1999, to $16.5 million for the three months ended March 31, 2000. The
cost of services component of operating expenses increased 26.5%, from $4.9
million for 1999 to $6.2 for 1999. The increase in our cost of services and
other operating expenses is consistent with the growth in revenues and is a
result of the expansion of our operations and the increase in the number of
subscribers and the number of employees associated with such expansion and
growth into new markets.

         Our depreciation and amortization expenses increased 48.1% from $7.7
million for the three months ended March 31, 1999, to $11.4 million for the
three months ended March 31, 2000. The increase in depreciation is primarily due
to the expansion of our networks and growth in to new markets.

         Other Income and Expenses. Our interest income was approximately
$722,000 for the three months ended March 31, 1999, compared to $71,000 for the
three months ended March 31, 2000. The interest income reflects the interest
earned from the investment of certain proceeds received from the issuance of the
senior discount notes in October 1997. The decrease in interest income is due to
the draw down of marketable securities to fund planned expansion and
acquisitions.

         Our interest expense increased from $7.8 million for the three months
ended March 31, 1999 to $9.3 million for the three months ended March 31, 2000.
The increase in interest expense reflects the accrual of the interest
attributable to the senior discount notes issued in October 1997.

         Income Tax (Provision) Benefit. We recorded an income tax benefit of
$3.9 million for the three months ended March 31, 1999 compared to an income tax
benefit of $1.8 million for the three months ended March 31, 2000. The income
tax benefit in 1999 resulted from our utilizing net tax losses under a tax
sharing agreement with ITC Holding.

         Net Loss. We incurred a net loss of $14.2 million for the three months
ended March 31, 1999 compared to a net loss of $22.0 million for the year ended
December 31, 2000. The increase in net loss is a result of the expansion of our
operations and the increase in the number of employees associated with such
expansion and growth into new markets.


                                       9
<PAGE>   11

ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

         Not required under reduced disclosure format.


                                       10
<PAGE>   12

                           PART II. OTHER INFORMATION



ITEM 6.  EXHIBITS

<TABLE>
<CAPTION>
Exhibit Number             Description of Exhibit
--------------             ----------------------
<S>                        <C>

   27.1                    Financial Data Schedule for the three months ended
                           March 31, 2000 (for SEC use only).
</TABLE>


                                       11
<PAGE>   13

                                    SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Company
has duly caused this report to be signed on its behalf by the undersigned
thereunto duly authorized.


                                       Knology Broadband, Inc.

               May 15, 2000            By: /s/ Rodger L. Johnson
                                           President and Chief Executive Officer



                                       12