Here's a video that lacks razzle dazzle, but makes up for it in sheer hilarious, barely-hidden kid show crudity. Apparently this actually did hit the airwaves in Britain in the early 80's at some point. Regardless, you'll laugh your "twanger" off when you see it.
Update: after a little reasearch, it turns out this was a Christmas gag tape for the staff of the show, and never actually went to air. It's still mighty funny regardless.