An american girl in paris (part une) - S6-E19
Audio problem: When Big calls Carrie and is leaving a message after Carrie has long since moved to Paris, Charlotte is there. She picks up the phone and says "Hi, it's Charlotte", but her mouth does not match the words. Her mouth says something like "Hey" not "Hi".
Answer: A popular brand of sexual lubricant. See http://www.k-y.com/index.jsp.
J I Cohen