Q: What do you call two nuns watching television?
A: Not very interesting.
Q: What do you call two nuns watching television?
A: Not very interesting.
Hey, genius. It's funny 'cause nuns are supposed to be, like, super religious and stuff, not glued to the TV like some couch potato. So the punchline is unexpected and points out that even nuns do boring human stuff. You probably think the History Channel is reality TV, don't you?