I was part of the original Andy Pandy generation (every Tuesday on Watch with Mother). I later learned that they only made 26 total episodes of the original, and then repeated them ceaselessly for twenty years. That was then. This is now. We now have a new Andy Pandy. Andy and Teddy are much as they were - Andy thoughtful, and Teddy somewhat impulsive. Looby Loo however is quite changed. In the original she only moved around when T and AP were not around. In this version she is a full participant providing sensible big sister style behaviour. Some slightly suspect gender-stereotyping (she is always baking cakes, has indigestion pills, and a sewing kit in her bag).
Other characters quite fun too (a ball, a dog, a snake and a sailor).
Anyway my 2 year old thinks it is fine. So do my older children (9 and 13) who consider it to be quite retro (interesting what they put out for this age group).