Ahh found it!
In Series 3, the one where Peter takes Chris to the Irish Museum to show him his heritage.
Man I nearly pissed myself laughing when I saw that one.
Especially the ‘typical Irish home’ displays - woman is on her knees praying, she falls back, and out pops a baby…
funny cos it’s true
Quahog has a competition to pick the theme of their annual parade. Peter’s entry wins, and his theme was an episode of “Who’s the boss”.
Lois: Peter, I’m glad you won, but isn’t your idea a bit esoteric?
Peter: Esoteric?
Zoom inside Peter’s head to reveal a bunch of guys sitting around a conference table, with a big whiteboard reading “Esoteric”.
Guy One: Could it mean “sexy”?
Guy Two: I think it’s a science term.
Guy Three: Guys guys guys, “esoteric” means delicious.
Zoom out of Peter’s head back to reality.
Peter: Lois…“Who’s the boss” isn’t a food.
(Chris is in the back seat of the car, waiting to be taken to soccer practice, talking to Raggedy Ann & Andy dolls he believes are Lois and Peter.)
“We’re going to be late! Why won’t you talk to me?!”
Peter’s description of an attempt to book Cheesey Charlie’s for Stewie’s birthday gone wrong:
Manager dressed as Satan: "Hi, welcome to Cheesey Charlies. HEIL HITLER!
Peter: “I’m toilet training my son, and was wondering what books you would suggest.”
Bookstore Clerk: "Well, you could go with the standard, Everybody poops and the not-quite-as-popular Nobody poops except you.
Peter: "Well, see my family’s Catholic…
Bookstore Clerk: "Ah, well then you’ll want You’re a naughty boy, and that’s concentrated evil coming out of you "
Immediately after which Brian says “Swing and a miss!”
The ep when Brian becomes a porno movie director was funny. Does anybody remember the movie titles? One was Shaving Private Ryan.
Just got Seasons 1 & 2 on DVD yesterday. I loved Peter saying the only problem with their neighborhood was too many Jemimah’s Witnesses as a black lady tries to sell them pancakes.
What episode was this one?
Peter: Don’t worry Brian I read about this in a book somewhere.
Brian: Peter, are you sure it was a book? Are you sure it wasn’t nothing?
Peter: Oh yeah.
Peter: uh…lois go get the medical dictionary and look up, “lung and fork”
Lois: Why?
Peter: Times a factor lois.
Doctor: Well Rudolph, we finally now what makes your nose red.
Rudolph:Is it Pixie dust? Or Leprechaun tails?
D:No, its a tumor.
R:You mean, like a megical christmas tumor?
D:No, a malignant tumor. The base of which is logged directly in your brain.
R:Oh…like a happy speci–
D: Your going to die.
Stewie: Don’t you dare or I’ll do to you what I did to the Beatles!
FLASHBACK
Stewie: John, I’d like you to meet Yoko; Yoko, John.
…
Peter’s pondering something, and he strokes his chin. Suddenly he grabs it, mutters, “What? How’d these get up here?” and puts his “chin” in his pants.
Quagmire: Hey, honey! Why don’t you turn around and show me the lower East Side!
Woman: Sure! (…in a gruff, manly voice.)
Quagmire: Whoa! Transvestite! Back off! Wait a sec, pre-op or post-op?
Woman: Pre-op.
Quagmire: Whoa! Transvestite! Back off!
Diane: And now, back to Action News Five. Our top story tonight: when toys attack. Quite a situation we’ve got here, Tom.
Tom: Quite a situation we’ve got here Tom indeed, Diane.
And the chumba-wumba song from “Wasted Talent”:
Life can be hard when you’re stuck in a chair
Finding it hard to go up and down stairs
What do you think of the one you call God?
Isn’t his absence slight…ly…odd?
Maybe he’s forgotten you!
In “Lethal Weapons”, I love what Peter says to the New Yorker
Peter: Is your refriderator running? Because if it is, I bet it runs like you…very homosexually.
another one
Peter: That’s my seat, and I had sex with your mother.
New Yorker: What did you say?
Peter: What? About the seat or me plowing your father’s wife.
When Stewie was born, they found a map of Europe and bombing sites were labled.
Which reminds me of another favourite.
Chris: ‘God is watching me go number 2? Great, now I’m a sinner. And God’s a pervert.’
(10 points to anyone who fills in the setup. ^__~)
“Let’s Go to the Hop” was already mentioned, but I have to say I have a soft spot for that episode. Besides the bondage gear scene, I also liked:
– Subtitles in Korean!
– “How many licks does it take to get to the center of Quohog State Prison? JUST ONE.”
– The heartwarming ending where Meg shows her true feelings for that dorky A/V kid. 
– And my favorite part, the song and dance number.
“Your life will hit the skids, and your kids will be born without eyelids.”
(Incidentally, does anyone know what song, if any, that bit was parodying?)
Grandfather:I know what you’re doing in there. And, it’s a sin. if you ever do it again, you’ll burn in hell.
Chris: But I do it every day. Sometimes twice.
Grandfather:Mark my words lad, you may think you’re alone in there, but God’s watching! Don’t do it again!
Chris:God’s watching me go number two? Oh man, I’m a sinner. And God’s a pervert.
Ten poins for me.
DaBoom
Some more favourites:
Peter: Jeez, Lois, what are ya doing lying on the couch at this hour? Have you been drinking?
Lois: Peter, you know I never drink.
Peter: Oh, yeah? Just like you never dodge the draft?
Lois: What are you talking about? I’m a woman!
Peter: Sure you are… now…
Brian: Peter, this is the final plague!
Peter: Good, 'cause this is starting to get really old.
Brian: Peter, the final plague is the death of the first-born son.
Peter: Oh no, Stewie!
Brian: The first born son.
Peter: Meg!
Brian: Your wife.
Peter: Chris!
I almost died during the scene when Lois returns home to find that Peter has turned the livingroom into Pee Wee’s Playhouse.
Actually, John Lennon. The joke is that at first, you think Stewie’s the one that shot him. The joke is he’s the one who introduced him to Yoko Ono.
Peter gets pulled over by a cop, and Peter says something like “hold on, I’ll fix this.”
Cop comes to window and says “Licensce and regis…!”
Peter has his shirt pulled up, exposing a big ol’ man-boob nipple.
…and, when the cop doesn’t react, Peter says something like, “Great. I get the only straight cop in Connecticut.”