It was inevitable that tv's place would diminish.
It isn't "gone" and won't completely "go away".
With digital broadcasts, your viewing habits will be capable of being monitored (meaning targeted SPAM, er advertising, and even "live feedback" on gameshows, "top of the pops" video shows, political polls, etc.). Your TV will BECOME a computer.
People are watching tv on their phones now.
The same content is available through different sources.
The GOOD thing is that the "traditional" media schedule will become a thing of the past. No more "news block", junk/rerun block, and MAYBE the trend towards informercials (even on the major network affiliates after midnight) will end.