Eddie McGuire tests the nation's IQ

Livinia Nixon joins Eddie McGuire for the latest The National IQ Test.

One of TV's biggest ratings winner returns for a new test in 2010.

After reviving Hey Hey It's Saturday and The Block, Nine now returns The National IQ Test, last seen on air in 2004.

Slipping with ease back into the hosting role is Eddie McGuire, this time with Livinia Nixon on board. The live TV quiz asks viewers to participate in a series of questions and puzzles designed to help determine your IQ.

When it first aired in 2003, the concept rated through the roof. This time Nine has assembled more social groups who will compare their brain power in front of the cameras.

"We've got wives and girlfriends of sports people, sports fanatics, entrepreneurs; we have Generation Y who know everything so they should be fine at it all. We'll have state versus state with people online," says McGuire.

"There are some straightforward intelligence questions, in regards to numeracy, vocabulary and things like that. For instance, in our memory test we'll use scenes from Two and a Half Men. People should be alright on those because they've seen them all 13 times!" he laughs.

"From my point of view it's an entertaining, fun way for a family to sit down together for two hours, and hopefully get something out of it."

These days McGuire is scoring points with Hot Seat, now regularly beating Seven's Deal or No Deal. He admits to loving giving away the network's money, and doesn't entertain wild theories about whether he helps viewers to choose the right answer.

"People read everything into it. Sometimes people think I've got a set on somebody and want them to lose and sometimes I want them to win. I can tell you I always want them to win," he says.

"But people can watch the show and draw their tactics accordingly."

Next year McGuire is tipped to become the new host of This is Your Life in addition to more Hot Seat. But the shows won't be filmed at Nine's historic Richmond studios, where McGuire has hosted all his Nine programs, with the network moving to a new home in Melbourne's Docklands in 2011.

"Obviously with GTV being the last of the original television stations it will be disappointing. It's so well located, it's got a great feel, and I can remember walking in the first time. There seemed to be a magic about the place. Hopefully we can replicate that down at the Docklands," he says.

"But it's been a bit like the Collingwood supporters who said they loved Victoria Park. They didn't have to work there with rising damp and Legionella. Similarly, those who work at GTV in the middle of winter know what it's like when that wind's whistling through Studio 9 or out in the sets bay. It's freezing. I think Ronald Biggs did the last bit of carpentry on Graham Kennedy's dressing room. It's an old building that needed massive renovation to be brought up to scratch.

"So now we've got state of the art facilities and hopefully we can bring the magic of television."

Meanwhile, "Eddie Everywhere" as he is so commonly known, turns his attention to The National IQ Test hoping viewers at home will play along.

"You can do it on NineMSN, you can do it on your phone, you can do it on the back of an envelope, or the form from the News Limited newspapers."

The National IQ Test airs 7:30pm Tuesday on Nine.