Caring for a Pet is the thirty seventh episode of the first series. It first aired on October 26, 1999.
Judy shows the Tweenies a video about how to care for a pet. Unfortunately they leave before seeing the bit about looking after dogs and decide to look after Doodles. They dress him in a nappy and a shirt and Milo keeps trying to feed him a sandwich. Eventually Max shows the Tweenies the correct way to look after Doodles.