12 PM shouldn't mean anything, of course. It's 12 noon or 12 midnight. Neither of them is post meridian or ante meridian. The sun is at the meridian.
But I think common usage has it that 12 PM is noon and 12 AM is midnight.
I really would like to see that. Maybe the video tape is available from the travel channel.
Our place is furnished, and we've "closed", sort of. All three bedrooms are rented for the next week. Hope our guests don't show up on a future travel disasters show.