The One With The Tiny T-Shirt - S3-E19
Audio problem: At the start when Joey comes into Monica's apartment and does his little dance number, watch his mouth on his way out; it's totally out of sync with what he is saying. (00:03:15)
The One With a Chick. And a Duck. - S3-E21
Audio problem: At the end of the program, Joey asks Chandler if a chick can swim. They put the chick in the bath, but it's still able to chirp even though it is supposed to be under water. (00:21:20)
The One With The Tiny T-Shirt - S3-E19
Audio problem: When Joey chants "Oh Mommy, Oh Daddy, I am a big ol' baddie" his voice doesn't match his lip movements.
Audio problem: In the scene where Malcolm is talking to Phoebe in the subway, you can hear him but his lips aren't moving.
The One With The Princess Leia Fantasy - S3-E1
Audio problem: When Monica answers the door and sees her father, she says "Hey Dad, what are you doing here?" but her lips barely move at all.
Answer: The statements that she's contradicting (that it is common, it happens to every guy, and it's not a big deal), are the things that a woman commonly says to a man who is suffering from erectile difficulty, typically to assuage his bruised ego. However, most men do not believe that these statements are true, as evidenced by Chandler's outburst. He's so caught up in the proof that women are lying about it that he gives himself away.
Rooster of Doom