Your choice of lowbrow entertainment may be because you are dumb, or it may be because you are smart but looking for an escape that has oooh shiny and doesn't require deep thought. To draw inferences on intellectual capacity based on what TV shows someone watches is just snobbish.
Bullshit. If I want to do stuff that doesn't involve deep thought, I play some mindless video game (like an old NES game with an emulator, or an old arcade game like Pac-Man), or I go hiking or biking, or maybe watch some silly TV show like Big Bang Theory.
What I don't do is watch a TV show that requires me to listen to a lot of homophobic and religious nonsense, since this show is absolutely famous for this. Watching a show like that (unless it's just to be horrified) absolutely says something about your intellectual capacity and your leanings. This isn't just some un-serious TV drama about some people living in an apartment together.
You probably think being an opera fan indicates higher intelligence than being a death metal fan.
Anyone who knows anything about opera knows that it was considered somewhat lowbrow entertainment during its time; it was made for the masses. Also, anyone who knows much about modern music knows that there's a lot of death metal that is quite complicated and requires a lot of talent and skill to play properly. Metal as a genre is generally fairly complex, as it emphasizes musical virtuosity more than vocals or lyrics (though there's exceptions, like the 80s hair-metal).
However, neither of these typically espouse fundamentalist Christian anti-gay rhetoric.