what last time?

I don't really watch the show but if I have to guess he probably referring to the season where they kill him off?

Other then that I don't really know you probably going to have to ask JediFur on what he talking about.

He had a show called What I Learned on Jefferson Street, I think it was supposed to be more of a heart warming drama starring Elijah Wood, but the producers changed it to a horribly written comedy starring James Woods.

And then Brian's son got onto a Disney teen show and used that to basically do the same thing for his own ego...

In one episode, he manage to write a pilot to a tv show that got picked up.

But then James Woods show up, then he and the producers changed the show entirely from Brian's vision, but he want along with it for the fame of it...
As bad as it was... turns out Brian did the same thing with his estranged teenage son (who is older than him in human years) when he was working on a Dinsey Teen show...

also the episode's B plot to the Jame Woods episode was about Stewie getting a AWFUl head injury, with blood and exposed brains, and everyone in the family trying to pass the blame onto each other than taking care of him...

Is it any wonder why I stop watching the show after something like that?

Brian should have his own show with Stewie

Yeah... I don't really care for Seth McFarlene shows anymore, they're all basically the same in terms of jokes, tones, and characters.