I have this weird aversion to shows that get big. People have told me to watch homeland, walking dead, and breaking bad. Consequently, I haven't watched any of them. I can't help it. I just assume if it's popular and people insist I watch, it's awful.
I get this too, but it's never for the same reason.
Breaking Bad, Mad Men: I refuse to view horrible people as protagonists. Tried them both, got tired of them when I realized nothing good was going to come of anyone.
Game of Thrones: Couldn't get into the books, think there are dozens of fantasy series out there that would have been better with this type of budget/investment.
Walking Dead: watched the first season and frankly found it overrated. It's just another *** zombie thing.
Supernatural: It's not the Dresden Files.
etc.