Lucy Worsley has been a nervous "wreck" on the set of her new game show.
Lucy Worsley is getting used to her new role
The 49-year-old historian is fronting new Channel 5 show 'Puzzling' - her first job hosting anything in a studio - and she admitted she's really feeling the "pressure".
She told the Daily Star newspaper's Hot TV column: "I'm a wreck, an utter heap of nerves. This is all new to me and the pressure of it is extraordinary.
"There are so many things that could go wrong for the contestants, but also for me. It's been a real joy, but also nerve-wracking and terrifying.
"Normally I'm out with a very small crew stuck on a rainy street corner in Edinburgh. I'm not used to working with such a large, complex team in such a big TV studio."
Lucy confessed while she always assumed it was tough to make things look as easy as the likes of Victoria Coren Mitchell or Claudia Winkleman do, her new role has confirmed it.
She added: "I had a sense that it wasn't easy to be a Claudia or Victoria, but now I know it for an absolute fact.
"Hats off to the people who make it look effortless. I'm in awe of them."
Meanwhile, she explained that there is so much that goes into making the show - which is set to launch on June 22 at 8pm - right down to getting the balance right when she's asking a question.
She said: "I'm under huge pressure to get the question out quickly but correctly. And it's so important for everything to be absolutely fair.
"There are even some adjudicators in the back room watching and listening and if there is ever any doubt about whether an answer is correct or not, everything has to be fully checked out.
"So there are these pauses where they check everything."
Tagged in Claudia Winkleman