While doing some research in the Internet Archive of the Moving Image, I came across a couple of episodes of an early-50s kids' TV show called
The Magic Clown. "Show" is almost a misnomer, as it's essentially a 15-minute commercial with just enough entertainment to keep the audience watching.
It's surprising any of it has survived at all, since it was (of course) live, and wouldn't have been considered worth filming for posterity. But there are two complete shows available, dated roughly a year apart:
The Magic Clown 1951
The Magic Clown 1952
There's also a 25-minute compilation of excerpts from various 1952 episodes:
Magic Clown excerpts
Two different clowns. The 1951 clown does some pretty decent bits, if anything rather too sophisticated for a kids' show. The 1952 clown is a lot ...well, clownier, and depends on gimmicks.
By the way, I just about remember eating Bonomo's Turkish Taffy.