I just picked up News Radio season 3 that has the episode with James Caan. He's going to be portraying a radio news man in a new movie and visits the station to observe how things work... of course, Phil Hartman drives him nuts...
Also, the episode with Jerry Seinfeld is on the same DVD. Where he's dining and suddenly is intruded upon by Hartman to do a recorded interview right there in the restaurant... he pisses Jerry off, Jerry tells him off, and then Bill (Hartman) editis it to play on the air making Jerry look like a asshole.
Funny stuff.