At 10 minutes into the show, you will see Charlotte York on the phone at the art gallery. Carrie is narrating and mentions a celebrity in the art gallery. The camera moves to him (Wiley Ford) and Charlotte promptly greets him. He is looking at a fire extinguisher in the gallery. Look up right before she introduces herself. There is a microphone, suspended in the air, and moving! I'm very surprised it wasn't removed, it's very obvious considering the scene is set against a white wall and the microphone is black and silver.