1. Brian Henson Intros
2. Muppet from the vault drawings
3. things left off of the season 1 set like you've got a friend sung by Vincent price which is priceless

4. muppet short clips and mini movie sketches that are not on anything else.
These Time Life muppet show dvds go for quite a bit and are very hard to come by I would not suggest ever getting rid of them even with the new box sets coming out.
I also hold onto my old muppet playhouse video vhs's because they're super rare also and have orig. just for those vhs's and those will never see the light of day again.