What's the first Muppets-related thing you seen?

[Mo Frackle]

Either Sesame Street, Muppet Babies, or the "It's Not East Bein' Green" Sing-a-Long video. Most likely Sesame.

 

[Piggy The Frog]

Probably Sesame Street or Fraggle Rock. I was also fairly young when I first saw the earlier Muppet movies. It's hard to say, because I don't remember not knowing anything about Muppets.

 

[CensoredAlso]

because I don't remember not knowing anything about Muppets.

Same here; they've just always been there. It was most likely Sesame Street in the beginning for me, but also Muppet Babies, Muppets Take Manhattan and the fairy tale VHS's.