For me, it's like this:
If it's fantasy, sci-fi, or an adaptation of something, or geeky in general, I don't see a problem with it being there.
Harry Potter? Yes
Twilight? Although I think it sucks, it'd qualify, yes.
Psych? Bordering on no, but it makes tons of references to 80's shows and had tons of geeky references in it, and is pretty much Sherlock Holmes in America, so just slides by with a yes.
Family Guy? Hell ****ing no. The Star Wars episodes are cool, yes, but not nearly enough for a whole goddamn panel.