There is speculation that the program will be replacing Family Feud on Network Ten.
White’s new position is in addition to his on-air role at the network.
Two of TEN's long-running formats return next week.
TEN has aired about 1,200 episodes of Family Feud since it launched 2014.
• MasterChef judge Matt Preston on Gordon, Nigella, and ratings strategy
The 23-year-old singer-songwriter won Australia’s Got Talent at the age of 12.
Ten years is a such a big milestone, Preston tells Mediaweek.
• Paul Anderson and Mark Fennessy speak at Melbourne MasterChef launch
Webb-Sear is currently group general manager of finance at Fairfax Media Limited.
Oetjen featured in season one of The Bachelor Australia with Tim Robards in 2013.
The announcement comes after the departure of Ita Buttrose from Studio 10.
He was also a contributor to 3AW.
Shoebridge will leave his current role on May 25, but will continue to work with Ten as a consultant.
Other guests on tonight's episode include Tom Holland, Emily Blunt and John Krasinski.
