Audio problem: After Buzz's flight test, Bo Peep says, "I found my moving buddy." Her voice is a bit different.
Suggested correction: I don't hear anything different. Certainly not enough to be called an audio problem. It's Annie Potts's voice, rough edge and Nashville accent and all.

Trivia: The carpet design used in Sid's house is the same design used in the hotel featured in The Shining (1980). (00:48:55 - 00:50:10)
The design is spot on. The color is just different.
So it is identical, except for how it is different?
No one said it was identical. The trivia is the pattern is the same. Color has no bearing on the trivial fact. The fact that they animated the carpet means the design was intentional. Although, it's possible they copied the design from a 70's carpet pattern that "The Shining" also used, rather than copy the design in "The Shining."
Factual error: When woody lights the rocket using Buzz's helmet to refract the sun, Buzz being made of plastic (including his helmet) would've been burned or at least had some sort of damage from the sun, but he doesn't. The same when Woody finds out his hand is burning. No visible burn mark.
Suggested correction: The sun is concentrated further beyond, not the helmet, so the helmet doesn't get as hot from it as that area does. Besides, plastic doesn't melt that easily, not from a concentrated sunbeam at least. It's a better question to ask if plastic can concentrate light as much as a magnifying glass can. We don't know when the toys feel something, so he must have felt the heat before it damaged its hand. We hear sizzling but that can only be superficial. No scar is from Sid's torture either.
Character mistake: Mr Potato Head gets torn apart by baby Molly after the opening scene. When Andy returns to the room with Buzz everyone resumes their positions, but Mr Potato Head looks for his bits and sits under the shelf with the other toys.
Suggested correction: I don't get it. When Andy and the boys are going to his room, all the toys scramble to get back into place. Mr. Potato Head is missing his left ear, and he slightly panics. When the boys get to the room, Mr. Potato Head is under the crib with his left ear back in place; he found it off screen. It's appropriate for him to look for any missing pieces of his before rushing back into place.