It will also leave a question mark over the next series of The Apprentice, as one of Chiles's BBC roles was presenting its spin-off, You're Fired.

BBC: Profile: Adrian Chiles

They are particularly concerned that a future series of The Apprentice could be broadcast around the time of a possible election next year.

BBC: Tycoon Sugar takes seat in Lords

Mark Burnett produced the wildly popular reality television series Survivor, as well as The Apprentice, Eco-Challenge and Rock Star.

FORBES: Magazine Article

In addition to promoting his golf courses through the Golf Channel and producing pageants and series for the small screen, The Apprentice once again helped keep The Donald relevant while raking in extra cash for the billionaire.

FORBES: How America's Top Talking Heads Banked Nearly $1 Billion

The Apprentice, which has just finished its fifth series, has been a huge hit for the BBC.

BBC: 'in talks' over Sir Alan job