Is this a real memory from my childhood or did I dream it?

[goodeyebrows]

Russ Abbott singing inchworm whilst dressed in a sleeping bag style costume crawling along the floor. My brother thinks I've made this up but I have a vivid memory of it from my childhood. You tube is not shedding any light. Help me Mumsnet

It’s real...I remember it!
I just googled Russ Abbot inchworm, and a reference comes up on a site about it too.

Real! I remember this too.

I knew it! What's the site? I'll have a look. Thank you so much.