I have this strong memory of watching a series at primary school (Scotland) in the 90s, where they had to collect big golden pieces of a jigsaw - I think it made a castle - by solving riddles? I can still remember the song, and I think it had the line 'to save the world of Panamar', or some kind of made-up place name starting with 'P'. Please help me remember it! I can still vividly remember the excitement when they wheeled in the humongous tv to watch the next installment!