O'Grady and Carr's shows will both have a strong interactive element
Comedians Paul O'Grady and Alan Carr are to join BBC Radio 2 in a revamp of its weekend schedule.
O'Grady will present a Sunday teatime programme while Carr will team up with Emma Forbes on Saturday evenings.
Paul Gambaccini and a documentary strand will take the Saturday night slot vacated by Russell Brand.
O'Grady, who has presented one-off programmes for the station, commented: "It's about time after years of being everyone's stand-in."
Carr has previously fronted a six-part comedy series for Radio 2 as well as presenting on sister station 6 Music. A large element of his new show will be listeners calling in to talk about their evening's plans.
Carr said: "Emma and I will be getting listeners in the mood for Saturday nights, whether they're going out and about or having a quiet night in with a ready meal and a cheap bottle of plonk."
"You've had the hairy cornflake - now you've got the fairy cornflake!"
Veteran broadcaster Johnnie Walker, who is currently presenting the series Pirate Johnnie Walker on Saturdays, will move to Sunday afternoons with a new show, Johnnie Walker's Sounds of the 70s.
The presenter fronted a lunchtime show on Radio 1 from 1971 to 1976 and the new programme will revisit that. Walker said: "We're even bringing back the original quiz Pop The Question."
He continued: "When I was growing up Sunday afternoons was compulsory listening so I'm delighted to be actually presenting a show in that slot."