The on-demand web video site Hulu announced a new subscription service Tuesday called Hulu Plus, which will allow users to unlock full seasons of premium shows on ABC, NBC and FOX across a variety of new platforms for a flat monthly fee of $9.99. This includes a growing library of 120 seasons of TV and 2,000 episodes, according to Hulu.

While the business world debates Hulu’s business model, we marketers are looking at it as one more significant move that will put television as we know it in the grave. Especially because Hulu is offering its new service in mobile formats on the iPhone, iPad and iPod Touch, as well as select Samsung internet-enabled TVs and Blu-Ray players. It will also soon offer Hulu Plus service on PlayStation 3 and X-Box 360, as well as devices from Sony and Vuzio.

Advertising space will continue to be sold, which means Hulu is adopting Cable TV’s strategy of collecting fees from both advertisers and subscribers. But advertisers will soon be able to geo-target specific messages to specific audiences in specific areas making their ad dollars much more cost-effective. And millions of people have already said they’re willing to pay $9.99 a month in order to watch almost any show they want anywhere, anytime, on any media player.

But don’t throw your TV set away. After all, antique shops are always looking for classic oldies. Your 72″ screen may someday become a valuable relic.