I remember watching this and loving it, we had it on video tapes but it broke and we got a dvd of it.
I remember that they were all puppets, the main character was a mouse and then he met a snake and a bee. There was also a computer that spoke to them and was self aware I think? The show (not sure if it was a show) was teaching words, punctuation, grammar, spelling and the alphabet. The pic is my bad recreation of the cover (yes I couldn't be bothered to cut the white part off).
Jolly Phonics