Continuity mistake: During the introduction, the snake tries to get away from someone who is supposedly Blackadder. He gets the snake. It's head is above a black tile. There is then a close-up of the snake, Blackadder wags his finger at it. It is now above a white tile.
Visible crew/equipment: Right after Mary Jo tells Anthony to eat her shorts, when the camera points at him, you can see the edge of the set and several people behind it. (00:08:15)