The TODAY Show celebrated two special birthdays today as Karl Stefanovic and Stevie Jacobs each clocked up 10 years on the team.

Amid a sea of tributes from present and past members of the TODAY family, fellow host Lisa Wilkinson crunched the numbers and told Karl he had done over 8000 hours of breakfast television.

"And that officially makes you the most-watched person on Australian TV ever," she said.

The team then enjoyed a highlights reel of Karl's greatest hits from the past decade, along with video tributes from his closest colleagues.

Celebrating ten years of legendary broadcaster Karl Stefanovic View Gallery

"Working with Karl, as I have for the last eight years now, has been a complete joy," Lisa said.

"The wonderful thing about Karl is that every day is different."

Former co-host Georgie Gardner also gave her view on what Karl added to the team.

"You never quite knew what to expect, you never quite knew which direction we were going to," she said.

But even those closest to him admitted he had his faults - though these made for great television.

Karl Stefanovic with TODAY co-host Lisa Wilkinson. (9NEWS) (9NEWS)

"He's shocking with animals," Lisa said.

His attempts at singing and dancing were also discussed, but this time Lisa came to her "TV husband's" defence.

"Don't you dare say a word against Karl's dancing," she said.

Tracy Grimshaw, who was co-host when Karl joined, said he had become more polished since those early days but remained very much the same person he was 10 years ago.

Karl on set on his first day with Tracy Grimshaw and Richard Wilkins. (9NEWS) (9NEWS)

"The thing about Karl that's never changed is he's an original unit and he was an original unit from day one," she said.

Entertainment editor Richard Wilkins said people were "fascinated" by Karl.

"I always tell them Karl is an intoxicating mix of the world's best broadcaster, and naughty schoolboy. And long may that continue," he said.

Karl with his Gold Logie. (9NEWS) (9NEWS)

Weather reporter Jacobs said it was hard not to have fun working with Karl.

"Once he's done his job and made some good TV, he's happy," he said.

Jacobs came in for some praise of his own later in the show.

Former TODAY sports presenter and radio host Ben Fordham made a special appearance to offer his congratulations.

"You are the most consistent performer on the TODAY Show every single morning, I've always said that, because no matter where you are or what’s in front of you, you always make some TV gold," he said.

Weatherman Stevie Jacobs has also celebrated 10 years on TODAY.

Newsreader Sylvia Jeffreys agreed Jacob's comic timing made him a star.

"Stevie Jacobs, the funniest man on Australian television," she said.

"I love you, I love working with you, and what you lack in height you make up for in exuberance."

Newsreader Sylvia Jeffreys said he was the funniest man on Aussie TV.

Wilkins was mystified by one of Jacobs' other mystical qualities.

"Stevie, a decade at the TODAY Show and you look younger than when you started," he said.

Wilkinson praised Jacobs' "genius comic moments".

His comic timing was praised by co-host Lisa Wilkinson.

"Stevie, congratulations on 10 fabulous years," she said.