It would appear that Karl might be returning to BBC 6Music as producer on Russell Brand's new Sunday show

A PDF on the BBC website here has the details...

The Russell Brand Show 10.00am-1.00pm BBC 6 MUSIC

Russell Brand joins BBC 6 Music with a new Sunday show that reunites him with the yin to his yang: producer Karl Pilkington.

Essex-born Brand is an award-winning comic, TV presenter and Big Brother aficionado, famous for a frank style of comedy. Karl meanwhile, is a Northern radio producer and raconteur, renowned for sharing his deadpan and leftfield musings on air with Ricky Gervais and Stephen Merchant.

Despite their very different takes on life, Brand is excited about the prospect of the new weekly show, which promises to be honest, surreal, argumentative and very funny. "Me and Karl will play records and discuss the impact Brokeback Mountain has had on out relationship," he says.

Highlights of the show will be made available for download and podcast each week via the 6 Music website at bbc.co.uk/6music

Presenter/Russell Brand, Producer/Karl Pilkington
BBC 6 Music Publicity

However the BBC 6Music website has Liz Kershaw down on their schedule for this timeslot, so maybe the Rusell/Karl show isn't going ahead?

( Thanks to MickeyAitch on the forum for finding this )