That you can't show someone flipping the bird on broadcast tv. Think about it, so weird.
Broadcasters actually can. I don't know if you saw this on the football game or not but the fcc doesn't even regulate cable channels. ESPN could show two hours of hoots and dongs with someone repeatedly shouting the c you next tuesday word and the government couldn't do a thing about it.
If it was on broadcast television, they essentially mandate what's considered pornographic and spoken profanity. The bird can fly anywhere a director allows it to.