A common convention during the era, when Alex Morrow (Henry Jones) and Richard Schausak (Robert Loggia) converse in Schausak's car, they are seated right next to each other, but when they arrive at their destination, they're seated at opposite ends of the front seat as would be normal.
Near the end of the episode, Alex uses a rotary telephone, but dials 8 numbers instead of 7.
At the start of the show, Alex gets a call from his wife, and his secretary tells him the call is on line 2. Next to Alex is an old rotary phone with the four light up buttons and the red hold button. When he picks up the phone to answer the call, he is not seen pushing any of the buttons, although it is difficult to tell if the line 2 button was already depressed. However, after he has picked up the receiver, none of the buttons are lit.