From Prussia with Love - S5-E1
Character mistake: Boycie is expecting a boy, but when he finds out it's a girl, him and Del argue. Del then says "I told you it was a girl, but it ain't" He should have said 'boy'. In the script for the episode, it even says 'boy'.
Character mistake: No referee in wrestling would allow a double team to occur without either trying to break it up or counting to five. Yet here he allows The Golden Girls to do so twice.