A lot of sitcoms aren't funny, but Big Bang Theory is like being held down by your older brother while his spit drips on your face.
Maybe it's supposed to be ironic? Like it's so bad it's good?
In high school my friends and I had bad-movie nights, where we'd do our own Mystery Science Theater. Is it like that? Do friends get together and smoke pot and have a Big Bang Theory marathon where they make fun of how terrible the jokes are?
Just trying to understand.