Just a minor correction: The stereo programmes weren't "recorded" or "made" in NICAM. They were made in regular stereo sound, NICAM encoding took place at the transmitters.
No, I think they were repeated once 1988 and later in 1989 respectively as was the tradition on Children's BBC to repeat the last series in the preceding weeks before the new series was due to debut. BBC Genome would likely be able to confirm this. Also, I'm not sure if any were repeated on BBC Choice when it had a children's strand. I know Series 3 was but I don't know if any earlier series were.
Hi I know this sounds irrelevant but I’ve been looking for a chucklevision episode and I need help and I’ve forgotten the name it’s basically where Barry becomes famous and then Paul gets jealous of him and then Paul becomes famous at the end (the episode was from like 2008ish not long before the show ended completely)