One of my favorite Family Guy episodes is the one in which Stewie builds his own transporter and brings the whole Next Gen cast to his house. The scene at the McDonald's drive-thru gets me every time.
[Stewie is at a McDonald's Drive-Thru with the cast of Star Trek: The Next Generation] Sirtis: Stewie, I'm not really much of a fast food eater.
Stewie: Yeah? Can you read my mind? Can you tell what I'm thinking right now? I'm thinkin' "shut up and get a salad".
Spiner: I want some McNuggets.
Stewie: We'll get to you, Brent!
Wheaton: I want a hamburger-- no, a cheeseburger. I want a hot dog. I want a milkshake.
Stewart: [punches Wheaton's head against the window] You'll get nothing and like it!
Stewie: Uh, hello!
Drive-Thru Teller: Yes, welcome to McDonald's. Can I help you?
Stewie: Oh, hailing frequencies open, huh? [chuckles] Uh, yeah. We're gonna get 2 McChicken Sandwiches and a Diet Coke and... What do you want, Michael?
Dorn: A McDLT.
Stewie: No. I already told you, they don't make those anymore.
Dorn: You know, sometimes it's a regional thing. You could ask.
Stewie: No McDonald's anywhere makes a McDLT anymore!
Frakes: I'd love a Shamrock Shake if they got any of those.
Stewie: It's September, Jonathan!
Burton: [w/visor on] Stewie, can I take this ******* headband off?
Stewie: No, LeVar. You're blind. That's the only way you can see.
Dorn: I'm just sayin', they have all the ingredients for a McDe... [a car behind them honks its horn]
Stewie: Just hang on! All right?! There's a lot of us! There's a lot-- It's a big order!
Stewart: What time do they stop serving breakfast?
Stewie: It's 3:00!
Stewart: Some of them serve breakfast all day.
Stewie: None of 'em serve breakfast all day!
Dorn: Do they have beer?