Dan Snow may have been dubbed "heart-throb historian", but he doesn't think it will stay that way for long.
"Every time I look in the mirror and see my hairline, I think those days are numbered," the presenter joked.
Dan is fronting a five-part history series, National Treasures Live, with BBC Breakfast's Sian Williams.
The 32-year-old son of Swingometer broadcaster Peter and cousin of Channel 4 news presenter Jon, said the idea of fronting a live show on BBC One was "terrifying".
But he added: "Sian's such a professional. She'll keep me on the straight and narrow, so every time I panic, I'll just look at her."
Dan, who married Lady Edwina Grosvenor, daughter of Britain's richest landowner the Duke of Westminster, last year, admitted doors opened for him because of his dad.
"I've been incredibly blessed to have my father and cousin to learn from. They're amazing," he said.
"If people are saying nepotism, there's nothing I can do about that. Of course opportunities came because of my dad, but they also emerged because I got a double first in history from Oxford."
:: National Treasures Live begins on BBC One on Wednesday, August 10.