I'm not one to argue with Search Engine Watch, their info is usually pretty good but this article from the most recent issue of Inc. Magazine seems to contradict that Google TV is no more.
Yeah, I have never used the TV ads BUT I was all over the Radio ads a few years back. The buy was CHEAP and effective in many metro areas. Plus (I bet) I was one of the only few doing it so it really kept the price down. Totally capitalized on it while I had the opportunity.