Lidsville was a Sid & Marty Kroft cartoon many have forgotten. Really trippy ...premise is protagonist (British teen male) falls into sinister magician's giant magic hat at a fair and lands in Lidsville, where the characters are all giant hats running around with arms and legs.
I think he is always trying to get home and thwarted by magician (as I recall, rather similar to HR Puff'n'Stuff). Hated the latter; loved Lidsville, particularly the opening credits!
Do You Remember Lidsville?
Do You Remember Lidsville?