In the early years of PBS' longest running children's show, Sesame Street, Filmation provided the producers with some short clips. Here, Batman & Robin (voiced by Olan Soule & Casey Kasem, natch) are in pursuit of the Joker, but, in the spirit of the live-action series, public safety becomes a more paramount issue:
One would assume this was produced during the 1st season of Sesame Street, as were clips with Superman and Jughead (from The Archie Show). Casey Kasem would do some more voice overs for Sesame during those early years as well. I recall a bit where he voiced a housefly. Have to find that one someday.......!