When I was younger I have a faded memory of a Sesame Street spin off called Open Sesame. One of the few things I remember were the characters would pop out of White circles on a blue background. I think it was probably an older show. When I looked on the Internet all I found Was the opening in a different language and a promo. Intro: m.youtube.com/watch?v=EUzjaO6Rw6g Promo: m.youtube.com/watch?v=XsP9r-GRVL8
It was for international audiences (Spain, Sweden, France, Montreal, Portugal, Italy).
I'd be interested to know how you came across this. Are you American, or are you from a different country? Many of them were in production or shown well into the 90s, or even later!
It's actually called "Play with Me Sesame". I used to watch that show a lot.
Open sesame is different from play with me sesame since Open sesame was a compilation show that featured sketches from Sesame Street it had sketches starring the muppets from the show and the animated sketches too however no material with the human characters were used in open sesame