Since at least the mid-1990's there has been a lot of talk about the promise of "Interactive TV". From a simple viewer's perspective, Interactive TV seemed to involve the opportunity to place wagers while watching horse racing or sporting events or else the opportunity to buy crap while watching informercials, home shopping channels, or 30 second ad spots on traditional programming. I was disinterested in all of these applications of Interactive TV.
However, I think there may be a great future for truly interactive television when it comes to on screen graphics and other information displayed on top of the progam that I really wanted to see in the first place. I can see where an info button or a TV station identifier with far prettier graphics than most cable set top boxes would be useful. If I'm in a hotel room in a strange town, I would like the opportunity to see a very pretty station logo that says ESPN HD, Lifetime HD, or even a logo that says "Logo" for the gay channel for all of about five to ten seconds. I then want that damned logo to go away until I press the info button or until I change the channel again. Interactive TV could eliminate the need for ugly, omnipresent bugs or snipes.
There is one other wonderful application of "interactive TV" that I envision. For lack of a better phrase, I call it the "go the hell away button". If only digital television were so interactive that I could simply cycle through one button and remove most or all of the on-screen graphics during major sporting events I would be very happy!
In short, the kind of interactivity that I want from HDTV is merely the ability to remove more crap from my screen and to enjoy more of the sights and sounds of actual compelling entertainment. Quite a novel concept I suppose.