Oliver Postgate and Peter Firmin's first foray into 3D stop motion (moving on from Ivor and Noggin's 2D pictures) this beautifully simple series is wonderful entertainment.
I think it deserves a high rating because it shows that entertainment can be simple and pleasing without having to have massive budgets. It goes back to a simpler time but shows that what matters is not the budget but the care and attention of its creators. Nostalgic, yes, but we can all appreciate the care and intricacy that went in to this series and laid the foundation for the much-revered Clangers and Bagpuss later on. The legacy of stop-motion can be seen in Aardman's work and I would argue that their work pays a tribute to shows like this.