Jon, I believe Tales of the River Bank replaced Rag, Tag and Bobtail. Several Hammies were used. I missed Trumpton so I certainly couldn't name the firemen.
Bert, thanks for the info on Muffin - I think all I recall is the song - must have been too young.
Interseting how this thread has different characteristics on either side of the Pond - certainly not surprising. I'm sure the folks on thsi (N. American) side will not know of 4 other early favourites albeit TV - namely The Magic Roundabout - now admit it, how many people made a Dougal out of a liquid detergent bottle, also I recall a mad rush in Hall of Residence at my undergrad day's to the TV room at 5:45. Always likesd the Herbs. Two other favourites (which I found using a web search engine) were Captain Pugwash - all Mudcatters should recognise the theme music and Noggin the Nog.
"Time for Bed" said Zebedee.
Cheers Rana