[F14 Pilot]

yes

dave stole the band!

[Dinsdale]

I believe the actual sequence was:

Roger: I am Pink Floyd!
Roger: Pink Floyd is over. I quit.
Dave: Excuse me? Rick and Nick have as much right to the band name as you. I've been in the band for 20 years. We're playing.
Roger: I'll sue you...

Years pass, lawyers get rich.

Roger lost.