Right now, the market
for ad-supported programs is four times larger than pay-for video downloads -- $409 million compared to $111 million -- though it's expected to surge to $4.1 billion by 2011. Ad-supported video will
grow to $1.7 billion over the same length of time. The reason is that the ad-supported model will mainly be used on the Web sites of major U.S. television networks. Video download services, on the
other hand, will be able to offer a broad array of programming from one location, as retail giants like Amazon.com and Wal-Mart start selling downloads from $2 per TV episode.
Adams says the market will explode as TV becomes linked to the Internet, citing Apple TV as one potential game-changer. But what if Internet services like Joost turn TV into just another Web service? What's the point of downloading films and paying for them if you can easily stream them in real-time? What if TV becomes something we have on in the background of several other open Web applications? There's no telling how consumers will adapt to the convergence of TV and the Web.