Baby Not On Board
No Chris Left Behind
I think that would be either "Stewie Kills Lois" or "Lois Kills Stewie". Stewie gets upset that Lois didn't take him on vacation or something and he sets out and "kills" her.
Brian & Stewie's Emmy appearance & performance wasn't part of any Family Guy episode.
Season 6 Episode 5: Lois Kills Stewie
Season 7 episode 7
the 100 episode was stewie kills Lois now the next one is Lois kills stewie
Model Misbehavior
'The Courtship Of Stewie's Father.' It is on the season 5 DVD
This happens in Stewie Griffin: The Untold Story.Specifically it's the episode, Bango Was His Name-O
season 2, episode 3 "da boom" where they all service Y2k and head to the twinkie factory. stewie is a squid in that episode.
Season 8 | Episode 13: "Go Stewie Go"
The episode is "Stewie Kills Lois."