In the beginning of the episode Will is wearing an inner tube that is under the left arm. In the next shot it is under the right and keeps moving back and forth.
Will was wearing no glasses when he went to jail. When Will goes on live TV, he's now wearing a pair of sunglasses with one lens missing. After the TV broadcast is over, the sunglasses have disappeared.
Will and Carlton are arrested for supposedly stealing Mr Furth's car this situation would have been avoided if they had told the officer the car was borrowed instead of stolen.