Oh, I get it. Kermit didn't want to accept any imitations. He'd rather see the real thing. I kind of agree with what SgtGonzo said though, after all Kermit's nervous breakdown after the Peter Sellers ep was mentioned at the episode guides as well.
Okay, here's a new one. Did Fozzie's 'Wocka wocka' originate in season 2? I haven't caught any episodes where he said that. Though in the Chloris Leechman episode, Fozzie Pig said 'Hoga hoga.' Was that supposed to be a parody of 'Wocka, wocka?' If it was, he's had to have said it at some point before that. Maybe I missed something.
It's sort of the same deal with Beaker's 'meeps.' In season 2 I've heard him make some faint sounds, but it doesn't seem like it was 'Meep meep meep,' until season 3. Does anyone have more information on this?