Other mistake: In the scene where Chip breaks the glass on the backboard, he falls on his back in the glass. If you look, there is a perfect outline of his body in the glass where he is supposed to land.
Other mistake: In the bathroom scene Chip throws Robin's date into the hand dryer, but you can see he doesn't hit the dryer.
Answer: Earlier in the movie during a flashback of the Cable Guy's childhood, when his Mom was going out she called the television "Mr. Babysitter". He means he's going to disrupt the television signal to give all the boys and girls whose parents use television as a babysitter a chance.
Bishop73