I grew up with
the Magic Garden which featured two hippie chicks and a hot pink squirrel and a patch of daisies that giggled maniacally:
http://www.youtube.com/watch?v=Q51Nki1PldA
The Great Space Coaster
crazy colorful puppets like Gary Gnu
http://www.youtube.com/watch?v=aBOFnpH-1Pc
Marlo and the Magic Movie Machine
about a guy who works for a computer company but after hours he would go into a secret room where he assembled a computer that archives all kinds of weird film footage.
http://www.youtube.com/watch?v=6lU4NTkEn_0
New Zoo Revue disturbingly huge animal costumes and two hippie dippies teach lessons about morality
http://www.youtube.com/watch?v=e18_KL8PUYM
The 70's were a weird time to be a kid.