According to Muppet Family Christmas, The Muppet Show, Sesame Street, and Fraggle Rock share a universe and according to the We are Family video Bear in the Big Blue House, Between the Lions and Barney are a part of it. As much as I hate Barney, the video actually provided a lot of info for me on the "fictional world" The Muppets share. Since SS characters appeared on BTL that is more proof that Between the Lions share that universe. Also according to "The Muppets:A Celebration of 30 Years" Emmet Otter shares the same 'verse and also it's quite obvious that Sam and Friends is a part of it due to Kermit. What do you think of my fan theory? Share in the comments below, .