Gerrold discusses his episodes The Trouble With Tribbles and The Cloud Minders, and what he did rewriting I, Mudd--and why he got no screen credit for it. He mentions that his two non-fiction books, The World of Star Trek and The Trouble With Tribbles: The Birth, Sale and Final Production of One Episode, were well-received. He tells how his cameo in Star Trek: The Motion Picture happened (he asked, Roddenberry said yes), as well as his cameo in Trials and Tribble-ations (he had to push a bit for that one).
He explains why he quit TNG:
He also talks about his (unproduced) TNG script "Blood and Fire", which was about the fear of AIDS.