You can't manufacture the good-natured, off-the-cuff banter witnessed each day between The Morning Show's hosts Larry Emdur and Kylie Gillies.
They take subtle and not so subtle digs at each other, finish each other's sentences and, on the morning of Today's set visit, Emdur was even pre-empting when Gillies would breathe or speak.
It prompted a medical guest to comment: "You guys know each other too well."
Later that night at the show's fifth birthday party at Emdur's oceanfront house, Gillies joked during speeches she had been faking their chemistry for five years.
But there is no faking the show's success.
This month TMS as it is affectionately known celebrates five years on air and five years at the top of the ratings.
It hasn't lost a week to rival programs, and for the week of June 4 had an average national audience of 188,000 viewers to Mornings on Nine with 127,000 and The Circle on Ten with 59,000.
To celebrate, the show is based at Universal Studios in Hollywood this week with plenty of celebrity guests lined up as well as Aussies made good in the US such as Chris Hemsworth, Human Nature, Cameron Daddo and Rebel Wilson.
Cast and crew will spend mornings filming at locations such as Rodeo Drive and the Hollywood Walk of Fame before broadcasting to Australia in the US afternoon.
Emdur is a natural showman and brings to TMS the same energy that made him a popular game show host but former news and sports presenter Gillies admits for her it was a change of pace.
"Absolutely, it was a huge adjustment five years ago," she says. "You have to be more open and show more of yourself and it is not just hiding behind something that is pre-scripted.
"You have to be able to let go a bit. I think I am a little bit less flamboyant than Larry but that's what works as well. I'm less likely to get my top off."
TMS attracts plenty of celebrities to its studios in Sydney's Martin Place but it's the spontaneous and seemingly uncontrived stuff the hosts get up to that the audience seems to love.
A birthday highlights package was full of Emdur getting his top off, getting his pants off, dodgy dancing, flute-playing thrills, spills, snakes and general craziness.
"If that comes across that's great, that makes me really happy and I'm proud of that," Gillies says.
"It is usually the unscripted unplanned things that go awry that are the most fun bits."
News is also an integral part of TMS, with Ann Sanders (who spent her early career at Seven Perth) behind the news desk since the show started.
Driving the show is Sarah Stinson, an experienced news and current affairs producer who was promoted from chief of staff of Today Tonight to executive producer of TMS in late 2010,
She is passionate about engaging audiences beyond the on-screen hours of 9 and 11.30am and is determined to bring the show to Perth before the year is out.
"We have totally redone our website, social media and digital presence is of incredible importance," she says.
"We have access to viewers around the world 24/7, so it's a chance for us to grow our brand."
Stinson and both hosts are on Twitter and Emdur is particularly prolific and amusing. Does he feel pressured to keep pumping out the tweets?
"It is about engagement, sometimes it has relevance to the show, sometimes it is just about another channel of engagement with our audience," he says.
"My afternoons are such I am not doing school runs anymore, so I can sit and punch out 140 characters."
He's also enjoying his return to the refreshed The Price Is Right.
"The Price Is Right is four or five days a month, it's a lot of fun, it's not like it's hard work," he says.
"I can come in here in the morning, knowing Kylie will be there for me."
"Or not, depending how I'm feeling," Gillies jokes.
The Morning Show airs week days at 9am on Seven/GWN. The Price is Right airs week days at 5pm on Seven/GWN7.
Sue Yeap visited Sydney as a guest of The Morning Show.