Sometime around Sept 1971 Shep did a voice-over for Sesame Street. This series of cartoons was meant as an aid to teaching the alphabet. A different character and cartoon for each letter of the alphabet. He talked about it on his September 7, 1971 show.
This was done about 1971 at a time when Shep was doing a lot of voiceovers and commercials. The interesting thing is that Shep does ALL the voices in this piece.
The cartoon aired 12-21-1973, 4-8-1993, 1-4-2001, and 1-18-2000. Dates that can be confirmed and must have originally aired late 1971 or early 1972.
Narrator: In the early days of the West, the peaceful town of Sniddler's Gulch was threatened by one of the meanest desparados of all time, Cowboy X, a man who left his mark everywhere!
(Cowboy X comes riding into town with a branding iron in one hand marked with the letter X.)
Frightened Looking Man: It's Cowboy X!
Cowboy X: Letter X! Letter X! Yipee!!! (he stamps an X)
Narrator: Cowboy X left X's everywhere - on the houses, on the streets, in the schoolhouse, X's on the horses, X's on the town hall, even on the good citizens of Sniddler's Gulch themselves!
Cowboy X: (in the distance) X! X! Yipeeee!
(Rides off, leaving a trail of X's)
Narrator: The citizens finally decided that Cowboy X had to be stopped.
Man 1: Throw him in jail!
Man 2: Run him out of town!
Little Boy: (crowd dies down) Wait, what if we just ASK Cowboy X to please stop marking up our town with X's?
Man 3: The kid's got an idea!
Man 4: It's so crazy it might work.
Woman: Here comes Cowboy X now.
Cowboy X: X! Woohoo! X! Yiiiiiipee -- X!
(Cowboy X screeches his horse to a halt and stamps an X on the boy's hat.)
Little Boy: Cowboy X, would you please stop marking X's all over our town?
Cowboy X: Why, sure ah'll stop! (laughs)
Cowboy X: From now on, ah'll be known as Cowboy O! (horse neighs) Yiiiipeeeee!!!
(Rides off, leaving O's all over the place.)
Narrator: And the citizens of Sniddler's Gulch lived happily ever, because they really weren't very smart!|