New QI host Sandi Toksvig has promised she will not be a "mini-me" of Stephen Fry.
Fry hosted the BBC Two comedy quiz show since it began in 2003, but announced last year he was stepping down.
Frequent panellist Toksvig was named as his replacement for the next series, N, which is due to start on BBC Two this autumn.
The former Radio 4 News Quiz presenter said viewers could expect her to put her own stamp on the show as she tackles the second half of the alphabet.
The 58-year-old told the Press Association: "I'm not a mini-me of Stephen. It's not that the BBC are paying by the inch now, that they hired somebody just like him but smaller.
"We're very different in our approach and in our style, and Stephen's was fantastic, but of course I have my own way of doing things."
While Fry was "brilliantly professorial" on the show, QI's new host casts herself as "the encouraging teacher who wants you to come up with the idea by yourself".
Toksvig, a co-founder of the Women's Equality Party, which launched last year, said she would ensure the show never turns into a "bun fight between the boys".
As host she has no power to choose the panellists, but series N features a range of guests including Jeremy Clarkson, Lucy Porter, Frankie Boyle, Jo Brand, Sarah Millican, Miles Jupp, Noel Fielding and Victoria Coren Mitchell.
She vowed to ensure that "the experience I've had on other panels, where maybe as a woman I have felt that it's a bit of a bun fight between the boys, that certainly doesn't happen under my regime".
Toksvig added: "I hope that any fresh-faced females will feel that it's a nice, fun place to relax and not feel that it's quite so testosterone-fuelled.
"But that isn't a pop at how QI's been, I've always had a good time on QI."
N fans can look forward to comedy moments - including resident panellist Alan Davies's impression of a trout's orgasm.
"Did you know that female trout fake orgasms?" Toksvig asked.
"Maybe they decide in that moment that this guy is not the one they want to have be the father of their children, so they pretend that they release the eggs, and the guy thinks, 'Woah! Scored', and then they just go on to the next, better-looking trout.
"I love things like that. And I have to tell you that Alan Davies doing an impersonation of a female trout faking an orgasm is one of the single funniest things I've ever seen.
"Never again will I eat a trout without thinking, 'I wonder how many times she pretended'."