You missed it? Well they showed a few things from Commercials and Experiments, a few other Wilkins commercials, some old interviews including a great one where Fozzie takes over Kermit's interviewee job. They showed some things from the Jimmy Dean show where Rowlf's nephew wanted to meet Jimmy Dean and writes him a poem, but accidentally dedicates it to Jimmy Durante and a few others. There was also an old variety show that the Country Trio performed in, and then the three puppeteers came around from behind the wall to speak.
And then they showed a lot of the improvised promo spots for the Muppet Show, and to UK Spots: Any Old Iron and Danny Boy.
I think that was it but if anyone wants to fill in parts I forgot that's fine.