I’m not just talking about cartoons, I’m talking about educational or little kids shows like pbs kids or Disney junior cartoons. Do you remember any shows like this with hypnosis scenes you’ve seen as a kid?

I don't think I do.

The Electric Company and WordGirl come to mind.

Not me as a child, but "PJ Masks" is a Disney Junior show that has shown body control, an episode with body switching-ish, and another one with MC.