Dr who third doctor quotes The Three Doctors

Third Doctor: Jo, it's all quite simple - I am he and he is me!

Jo Grant: And we are all together, coo coo cachoo?

Both Doctors: What?

Jo Grant: It's a song by The Beatles.

Second Doctor: Really? How does it go?

First Doctor: Ah, there you are! I seem to be stuck up here.So you're my replacements! A dandy and a clown! Have you done anything?

Second Doctor: Uh, well we've assessed the situation-

First Doctor: Just as I thought. Nothing.

Omega: What is this childish contraption?!

Second Doctor: The only freedom you can ever have. Take it.

Second Doctor: Take it, Omega!

Third Doctor: TAKE IT!

Omega: COMMANDS! YOU COMMAND ME?! THIS IS MY WORLD, I COMMAND! AND YOU PESTER ME WITH TRINKETS?!

Second Doctor: RUN!