Actually, television has always been 90% garbage, just look at all of the crappy low-budget cartoons from the 60's, I won't say what shows they are because there are so many of them and it might offend the members here that liked some of them. TV is like the internet, if a lot of people have access to it, most of what is made for it is rubbish, just look at Youtube. :P It's constantly off-line due to maintenance, and it takes forever to find what you want to watch, because most of it is garbage.
I'm not saying all of TV is bad, but that most of it isn't really worth watching. A decent cartoon or documentary will come on every now and again that will be good, but will start rotting once the series hits the big screen or run out of good ideas. I hate it when they have to resort to bathroom humor excessively, because it is so heavily abused. Toilet humor usually isn't hilarious the second time around if not executed properly, and it usually isn't, it's just another cheap way to get some laughter out of the audience.
As of today, TV is completely boring unless you mind watching good reruns, so I gave up my cable. I never really watch a lot of TV anyway, I don't even have a DVD player. XD