Berner wrote and performed his one-man stand-up shows, Lonely Guys and Rant which premiered at the Melbourne International Comedy Festival in 1997.
In 1999, Berner premiered his new one man stand-up show, Disturbed, at the Harold Park Hotel in Sydney.
Berner performed at the gala evening of the Melbourne International Comedy Festival in 2000 which was broadcast on Network Ten.
[3] Berner returned to TV and the Australian Broadcasting Corporation in 2004 hosting the quiz show The Einstein Factor.
The series involved contestants playing against a panel of three celebrity experts on a range of topics, with Berner as the quizmaster.
In 2007, Berner joined Southern Cross Austereo and was the breakfast host of The Cage on Triple M alongside Brigitte Duclos, James Brayshaw, Matt Parkinson and Mike Fitzpatrick.
[6] Based on the U.K. series of the same name, You Have Been Watching is a quiz show on the topic of television, featuring a panel of three celebrity guests and Berner as the quizmaster.
Peter was the second celebrity contestant to be fired by Mark Bouris on the show and he raised AUD$10,000 for his nominated charity ChildFund Australia.
[11] During this time Berner made appearances on Paul Murray Live, Good News Week, Studio 10 and Hughesy, We Have a Problem.