The Total Wipeout presenter, who has been linked to the returning reality show, claimed that she is concerned about taking over the helm from Davina McCall.
"I took over from Johnny and Denise on the Big Breakfast and while it was amazing, I just think that comparisons are such a difficult thing," she told DS. "It's like a sequel to a really good film. Who wants to see Titantic 2?
"I don't know if it's had its day or not. There's definitely a market for it. But I think Davina's fantastic and do you want to be called the Davina wannabe? I don't think anyone can do it as well as she does. Saying that... it depends how much they are offering."
Celebrity Big Brother returns in August. A non-celebrity version will follow in September.
> Who should be the new Big Brother host?
Watch Amanda Byram talking about Big Brother: