Mark Cuban Chairman/President broadcast.com

broadcast.com The Leading Internet Portal
and Destination for Video and Audio Broadcasts for Consumers and Businesses

Changing the Rules

Investment Highlights <ul><li>Huge Opportunity in
Multiple Large Markets </li></ul><ul><li>First Mover Advantage </li></ul><ul><li>Significant Barriers to Entry </li></ul><ul><li>Leverageable Business Model </li></ul><ul><li>Execution of Business Plan </li></ul>

Two Large Markets $105 Billion
Home Video $16 Network Television $37 Radio $13 DBS $4 Cable Television $35 Consumer Media Source: Veronis, Suhler & Associates and ITCA $30 Billion Video / Teleconference $6.4 Training $15.5 Trade Shows $7.7 Business Services

The Next Mass Medium Source:
IDC WWW Users (Millions) 36% CAGR

Yesterday’s Text-Based Solution Internet-Attached Device
Millions of Text-Based Web Sites

Yesterday’s Text-Based Solution Portals Yahoo!
AOL Internet-Attached Device Millions of Text-Based Web Sites

Today’s Multimedia Solution Internet-Attached Device
Live Broadcasts and Archived Video / Audio Programming

Today’s Multimedia Solution Internet-Attached Device
Live Broadcasts and Archived Video / Audio Programming Portal/Destination

The broadcast.com Advantage First Mover
Content Aggregation Network Infrastructure Distribution Partnerships

Leading Content Aggregator <ul><li>Strategy </li></ul><ul><li>Existing
Content </li></ul><ul><li>Established Demand </li></ul><ul><li>Focus on Rights </li></ul>AudioBooks Business CD Jukebox Education Entertainment Live Radio Live TV Music News Public Affairs Special Interest Spiritual Sports Technology Shopping Video Auction CHANNELS

Leading Content Aggregator <ul><li>385+ Radio
Stations </li></ul><ul><li>40 TV / Cable Networks </li></ul><ul><li>420+ College and Professional Teams </li></ul><ul><li>19,500+ Live Events </li></ul>Daily Live Broadcasts and 65,000 Hours of On-Demand Audio and Video Programming AudioBooks Business CD Jukebox Education Entertainment Live Radio Live TV Music News Public Affairs Special Interest Spiritual Sports Technology Shopping Video Auction CHANNELS

Leading Content Aggregator <ul><li>385+ Radio
Stations </li></ul><ul><li>40 TV / Cable Networks </li></ul><ul><li>420+ College and Professional Teams </li></ul><ul><li>19,500+ Live Events </li></ul><ul><li>2,600+ Business Events </li></ul><ul><li>Earnings Calls, Keynotes </li></ul><ul><li>2,400+ Full- Length CDs </li></ul><ul><li>350 Live Concerts </li></ul>Daily Live Broadcasts and 65,000 Hours of On-Demand Audio and Video Programming <ul><li>5,000+ hours on-demand video </li></ul><ul><li>56-300 kbps </li></ul><ul><li>120,000+ registered users </li></ul>AudioBooks Business CD Jukebox Education Entertainment Live Radio Live TV Music News Public Affairs Special Interest Spiritual Sports Technology Shopping Video Auction CHANNELS

Unparalleled Content Partnerships A.H. Belo
Corporation BBC World Service Capitol Records Capstar / SFX Communications Clear Channel Communications Granite Broadcasting Host Communications Learfield Communications Major League Baseball National Hockey League Trimark Pictures Turner Broadcasting: CNN/TCM/WCW 150 Division IA Schools Partner Benefits <ul><li>Access to In-Office Audience </li></ul><ul><li>Interactive Platform </li></ul><ul><li>Audience Demographics </li></ul>

Unparalleled Content Partnerships Partner Benefits
<ul><li>Access to In-Office Audience </li></ul><ul><li>Interactive Platform </li></ul><ul><li>Audience Demographics </li></ul>A.H. Belo Corporation BBC World Service Capitol Records Capstar / SFX Communications Clear Channel Communications Granite Broadcasting Host Communications Learfield Communications Major League Baseball National Hockey League Trimark Pictures 150 Division IA Schools Turner Broadcasting: CNN/TCM/WCW Exclusive

Leading Network Infrastructure Private Frame
Relay Network Content In broadcast.com Satellite Feed Video Feed Audio Feed Analog Digital

Leading Network Infrastructure Private Frame
Relay Network Content In broadcast.com <ul><li>22 Satellite Receiving Dishes </li></ul><ul><li>1,000+ Multimedia Streaming Servers </li></ul><ul><li>Support for 650 Simultaneous Live Events </li></ul><ul><li>Real-Time Quality Control / Support </li></ul>Satellite Feed Video Feed Audio Feed Analog Digital

Leading Network Infrastructure Sprint MCI
GTE UUNet UNICAST AT&T MULTICAST Content Out Satellite Feed Video Feed Audio Feed Analog Digital Private Frame Relay Network Content In broadcast.com <ul><li>Large-Scale </li></ul><ul><li>Commercial </li></ul><ul><li>Multicast Network </li></ul><ul><li>Access to Over 470,000 Dial-Up Multicast Ports </li></ul>Multiple 45 Mbps and 155 Mbps Connections (Multi-Homed)

Leading Distribution Partnerships Exclusive Menu
Placement MSN Web Events Content Partner Access to Nasdaq 100 broadcast.com japan Co-Branded Links

The broadcast.com Advantage * Media
Metrix, January 1999 <ul><li>800K+ Unique Users / Day </li></ul><ul><li>Ranked #17 of all sites on the Internet </li></ul><ul><li>Ability to Reach Office Users </li></ul>High Traffic / Large Audience Technology Independence Barrier to Entry Content Aggregation Network Infrastructure Distribution Partnerships

Leverageable Business Model Business Services
Advertising

Turnkey Business Services Customized to
Specific Needs <ul><li>Public Relations </li></ul><ul><li>Corporate Communications </li></ul><ul><li>Investor Relations </li></ul><ul><li>Stockholders’ Meetings </li></ul><ul><li>Trade Shows / Seminars </li></ul><ul><li>Product Launches </li></ul><ul><li>Sales Presentations </li></ul><ul><li>Training / Distance Learning </li></ul>Cost-Effective Internet / Intranet Broadcasts End-to-End: Capture, Feed, Distribute Restricted or Open Access Interactive Solutions broadcast.com

broadcast.com Can Reach More In-Office
Users than Traditional Media PCs in Offices <ul><li>99% have PCs on desktops </li></ul><ul><li>9% have televisions </li></ul><ul><li>32% have radios </li></ul>Audio and Video Usage <ul><li>71% have listened to audio or watched video at work on PC </li></ul><ul><li>54% connected on T1 lines or faster </li></ul>Source: Delahaye Group Workstation Media Usage Survey, Oct. 98

High Profile Broadcasts Sports <ul><li>Super
Bowl XXX - XXXIII </li></ul><ul><li>World Series ‘96-‘98 </li></ul><ul><li>NCAA Final Four ‘96-‘98 </li></ul><ul><li>NHL Season & Stanley Cup </li></ul><ul><li>Victoria’s Secret Fashion Show </li></ul><ul><li>Casablanca </li></ul><ul><li>Paul McCartney Internet-only Webcast </li></ul><ul><li>World Championship Wrestling </li></ul>Entertainment / Music News Events <ul><li>Clinton Grand Jury Testimony Video </li></ul><ul><li>John Glenn’s Historic Return into Space </li></ul><ul><li>NY Yankees Ticker Tape Victory Parade </li></ul><ul><li>College Bowl Games ‘95-’99 </li></ul><ul><li>The Masters/U.S. Open Golf </li></ul><ul><li>‘ 98 Winter Olympics </li></ul><ul><li>World Championship Boxing </li></ul>broadcast.com

600+ Business Services Customers Events
Broadcast from 9 Countries broadcast.com

Business Services Leadership More High-Profile
Events Than Rest of Internet Combined Experience 2,600+ Business Services Live Events First Mover Dominant Market Share Largest Dedicated Sales Force 85 and growing Execution of Plan Position Growth Engine broadcast.com

Interactive Multimedia Advertising Sponsorships Audio
& Video Gateway Ads Guaranteed Click-Thru’s broadcast.com

Interactive Multimedia Advertising - Next
Wave <ul><li>Audio & Video </li></ul><ul><li>Billboards </li></ul><ul><li>Scrolling Text </li></ul><ul><li>Banners </li></ul><ul><li>Sponsors </li></ul>Player as Browser broadcast.com

Traditional Media Advertising <ul><li>On-Air Radio
and TV Ad Inventory </li></ul><ul><ul><li>4,800+ spots / week </li></ul></ul><ul><li>Resold to Traditional Advertisers </li></ul><ul><ul><li>Stand-alone or bundled with Web ads </li></ul></ul><ul><li>Adding TV stations ahead of plan </li></ul><ul><ul><li>40 stations by end of Q4 1998 </li></ul></ul><ul><li>TV stations paying cash </li></ul>broadcast.com

Revenue Opportunities broadcast.com <ul><li>Commercials within
Programming </li></ul><ul><li>Pay-Per-View </li></ul><ul><li>Business Services Consulting </li></ul><ul><li>Commerce - Impulse Buy </li></ul><ul><li>Broadcasting for consumers </li></ul><ul><li>and small businesses </li></ul>

Jack Riggs CFO broadcast.com

Customer Growth <ul><li>114 new Business
Services customers in Q4 ‘98 </li></ul><ul><ul><li>Continued expansion into vertical markets: financial services, distance learning, and automotive </li></ul></ul><ul><li>59 new Advertising customers in Q4 ‘98 </li></ul><ul><ul><li>Ad integration, video gateways </li></ul></ul><ul><ul><li>More penetration with traditional media advertisers </li></ul></ul>

114 New Q4 Business Services
Customers <ul><li>Autodesk </li></ul><ul><li>Boston University </li></ul><ul><li>Cyberian Outpost </li></ul><ul><li>Ernst & Young </li></ul><ul><li>IMF/World Bank </li></ul><ul><li>NCR </li></ul><ul><li>Oracle </li></ul><ul><li>Tandem </li></ul><ul><li>Tenet HealthSystems </li></ul><ul><li>Trilogy </li></ul><ul><li>Voice of America </li></ul>

59 New Q4 Advertising Customers
<ul><li>Amazon.com </li></ul><ul><li>American Airlines </li></ul><ul><li>BigStar Entertainment </li></ul><ul><li>eBay </li></ul><ul><li>Kodak </li></ul><ul><li>Netfinity </li></ul><ul><li>Pacific Bell </li></ul><ul><li>Pepsi </li></ul><ul><li>PrimeCo </li></ul><ul><li>Volvo </li></ul>

Recent Developments <ul><li>Softbank </li></ul><ul><ul><li>JV to
create broadcast.com japan </li></ul></ul><ul><li>NetRoadshow </li></ul><ul><ul><li>Acquired leading provider of Internet financial roadshows </li></ul></ul><ul><li>Record-setting 2 million unique users with Victoria’s Secret Fashion Show </li></ul>

Salespeople 1998 1997 Metrics

Business Services Events 1998 1997
Metrics

Traffic Average Daily Unique Users
(in Thousands) 1997 1998 2 Million Users - February 3 54% increase Q4/Q3 Metrics

Revenue Mix Business Services 62%
Advertising 38% 1998

Quarterly Revenue Growth $ Millions
1997 1998

Operating Model % Revenues 1998
Target Production Costs Operations and Development Sales and Marketing General and Administrative Depreciation and Amortization Operating Income (Loss) 20 67 53 20 15 (75 % ) 10-12 22-24 27-29 8-9 9-10 18-22 %

Investment Highlights <ul><li>Huge Opportunity in
Multiple Large Markets </li></ul><ul><li>First Mover Advantage </li></ul><ul><li>Significant Barriers to Entry </li></ul><ul><li>Leverageable Business Model </li></ul><ul><li>Execution of Business Plan </li></ul>