Well, let's see... there's something I can think of right now:
Marjory: And I know what this fraggle has!
Gunge: Of course you do!
Philo: You're all-knowing!
Marjory: I know that!
~Beginnings
"It's hopeless. Let's go get some lunch!" - Felix the Fearless, Marooned
"Wembley, I found you in my book! You have all the symptoms of someone whose life has no meaning!" - Boober, Wembley's Egg
Sidebottom: Now relax.
Boober: Right. (falls down)
~Boober's Quiet Day
"Any requests from the cheap seats?" - Sidebottom, Sidebottom's Blues
"You know what? I think we just communicated." - Wembley, Space Frog Follies
Mokey: I'm sorry, guys. It's all my fault.
Wembley: No, it's not.
Boober: Yes, it is.
Wembley: Yes, it is.
~Mokey, Then And Now