Can't it be both?
Joke or no joke, the fact that single viewers feel they're so incredibly entitled to have themselves completely catered to is just...baffling is not a word strong enough. I hate a lot of the crap on television too. It's not that we've never had garbage before, it's just stubborn nostalgia freaks that somehow feel that everything is awful because their show that ended the lifetime of a human ago should be on 24/7. And here's the thing. You answered your own question here:
It's fine, I'll just go put my Muppet Show DVDs in instead. This is kinda why Television is dying.
If things like that are on DVD, what the heck is the point in putting them on television? Sure, not everyone's going to buy every DVD of their favorite show. But if you can get something uncut and commercial free why even bother tuning into cable/digital channels to watch them? Especially when (and I hate this about reruns) they only show like 2/3s or less of a series, so it's not even complete. That's why old TV reruns are sponsored by life insurance, and tax scam commercials instead of Coke and Tide. Unless there's some head up the butt licensing reason why some series isn't available, most everything is available somewhere.
Plus... lemme put it this way. Did any major network outside of syndication air I Love Lucy instead of Sandford and Son in the 1970's? No. This whole idea of a conspiracy that the new stuff is going to replace the old stuff is just about the most ridiculous thing I've ever heard. Unless they're wiping tapes like the BBC used to do,
everything old is just fine. It's out there and my only complaint is when companies refuse to make something available.
But you know. Typical internet. We can't have new things with new characters because they're not as good as the old characters, but don't you dare bring those old characters back because they won't be as good. No one's saying you can't watch the old stuff. But that doesn't mean that the entertainment industry should stop dead cold forever because they "nailed it" with some show made in the 60's. You know how hard it is to get to work on something, even something that sucks, only to hear, "WAAAAA! Some show that's been long cancelled isn't on and it's all the new shows' fault"? I don't wish that on anyone.