Downton Abbey shouldn't be a guilty pleasure DinoFan! It's a good show, I'm a 21 year old guy that watches it, and while I don't go around telling everybody that I do, I certainly wouldn't denty it if asked.
I could see how The Vampire Diariescould be a guilty pleasure, but it's really gonedownhill for me and I hate all the characters except Damon and Rebekah now. So if I don't really enjoy it, it's not a guilty pleasure!
At the moment, mine's American Horror Story.