Season 6 Episode 5: Lois Kills Stewie
The Blind Side
How can you... well you simply type Family Guy Stew-roids into the search engine of your choosing and you will probably get results.
The Fat Guy Strangler
You might be referring to the episode 'Whistle While Your Wife Works' (UK season 6/US season 5), in which Peter erratically falls down the stairs during the main title sequence and complains about the fact that his foot will be swollen for the rest of the week. The episode in which Stewie reads a Garfield book is called 'North by North Quahog' (UK season 5/US season 4).
Episode 38 :) if you watch it in arabic
Spot
That they were mad
The Munsters : Spot was Eddie Munster's pet dragon whose lair is under the stairs .
"The Plan," from season 1.
Its on the second floor landing to the left of the portrait passage on proffessor flitwicks office, on the stairs its a woman with sheep behind her
All of the "Road to" episodes have different openings, also "Whistle While Your Wife Works" & "Lottery Fever" have the intro being interrupted by Peter falling down the stairs and one of the dancers telling Peter she is pregnant.
Nina Martin hide the cup under the school stairs in the front.