Computer Animation (or CGI) was most likely used to do the opening scene with the A-Team.
When doing the A-Team opening scene, they literally directed it exactly the same as the real A-Team Introduction.
Gary Coleman was actually asked to Voice Act himself, but he declined.
Gary Coleman as Stewie: Whatcha talkin' 'bout vile woman?!
Brian: Umm...where are the toilets?
New Yorker Editor: Oh, no one at The New Yorker has an anus.
Peter: A-Team roll call; Face?
Quagmire: Here and handsome!
Joe: Here, and... crazy!
Cleveland: I pity the fool! But also suggest ways he may better himself.
Convention M.C.: Okay everyone, Alan Thicke will be up in a minute to answer your hate mail, but first, the winners of this year's costume contest.
(Flashback to Stewie at Woodstock on stage with long hair and a guitar) Stewie: Uh, excuse me, it's been brought to my attention that a few bad apples are smoking marijuana. Uh, I've got news for you, my friend: marijuana's illegal, not cool!
Lois: Oh, Brian, I can't believe they fired you! How come you never told us you dropped out of college?
Chris: I, I saw an after-school special about that! It didn't work out too well for Kristy McNichol, but, then again, nothing did...
A reference to a classic show where a group of friends banned together to prevent crime.
The Blair Witch Project
When Stewie see's Meg in only her bra and panties, he falls on the ground and we see only his legs convulsing. This is just like the end of the movie The Blair Witch Project.
The poster that Stewie referred to as "Crazy Stairs" is a real illustration titled "Relativity" done by M.C. Escher.