When Peter is talking on the phone in front of his parents in the living room, he is wearing a blue shirt with short straight sleeves. When he bends down to hang up the phone, his shirt sleeve is red with roll ups.
When Mike, Carol and Peter are in the living room, after Peter gets off the phone, Carol grabs the telephone twice.
When Peter is listening to an old movie ("To Have or Have Not"), the TV has the voice of Humphrey Bogart delivering the line of "You know how to whistle." In the movie, it was Lauren Bacall who spoke the line.