Video Blog: Mary Meets the Royals

ET's Mary Hart video blogs about meeting Prince Charles and his wife Camilla -- find out behind-the-scenes formalities of meeting the royals!

"Everything is timed to the minute," Mary says while being driven back from the event. "With a royal, protocol is you cannot address them first," she adds.

Watch Mary's vlog to find out what each of the guests were offered before the official meeting!