The 44-year-old is prolific in the gameshow genre and already presents three such shows on ITV - Celebrity Catchphrase, Rolling In It and In For A Penny.
According to The Sun, Mulhern will now host a fourth show named TV Winners, where contestants will be tested on their knowledge of the small screen.
"Stephen is really well respected at ITV and has very much become one of the faces of their light entertainment offering," a source told the newspaper.
"He's been in the business for almost 25 years and knows so many of the stars he's climbed up the ranks alongside.
"More importantly, he is viewed as a safe pair of hands when it comes to fronting shows. And with the gameshow format, which requires personality as well as skills to steer a programme, he really seems to have found his niche.
"In particular, bosses were impressed by him presenting The Big Soap Quiz on ITV, which made them realise how good he'd be in a similar role, full-time."
The new show is expected to air later this year. body check tags ::