S16·E87 Episode 1198 (Tue 3rd Nov 1987)

When Seth's bicycle lets him down Alan is called to the rescue, but there's no sign of Seth. Seth hitches a lift. He later meets up with Archie. Seth mentions his birthday is coming up, on the 22nd. Archie says that is when his birthday is. Phil has some plans to make money. Alan later catches Seth in The Woolpack. He berates him for abandoning the scene where his bike let him down as a search party was sent out.