Recently we discussed "Hear no Evil" on a ML. Someone asked if the "Boo"-remark coming from Blair was an adlib and I took out my script copy to compare it with the actual episode. Of course, once I started, I couldn't stop because I found more differences than just this one. It starts with Jim and Blair walking up to the doctor's receptionist.
( That's what I found out )
( That's what I found out )