The Jolly Boys' Outing - S6-E7
Continuity mistake: In 'The Unlucky Winner Is' (which is set before Rodney and Cassandra marry) Del changes Rodney's date of birth to 2nd November 1974 in order to make him appear 14, meaning this episode is set sometime between November 1988 and November 1989. However, in this episode, which takes place after Rodney and Cassandra have been married a whole year, a sign in the window of the coach (which can be seen just as the coach is leaving the police station) states that this episode takes place in 1989, and it is on a Bank Holiday weekend, thus can be no later than August 1989.
The Greatest American Hero (1) - S1-E1
Continuity mistake: While Bill and Ralph are in the car, John Mackie appears under the ship carrying the case with the suit. After John places the case in the car's trunk he walks back towards the ship empty handed, but in the last shot of John standing under the ship he's still holding the case.
Continuity mistake: When Colt Seavers is chasing the villains in the golf cart, the camera equipment on the back of the cart keeps disappearing and re-appearing.
Tiptoe Through the Penfolds - S5-E3
Continuity mistake: Although Danger Mouse is supposed to be on his own, when he turns a corner in the car, in the overhead shot, you can see Penfold sat next to him.
Continuity mistake: When Edward and Tracy open the lid of the chest in the tower, Benger puts his hand on Tracy's shoulder and Edward has both his hands on the lid. In the next shot, he now has one hand on it.
Continuity mistake: Myron enters his own office after bailing the Simons out, and tells them to get out. Rick, sitting on his chair, lowers the hand with a cigar, but in the reverse shot Gerald McRaney is still smoking it, it's right in his mouth. (00:19:00)