Channel 4 has announced it has commissioned a full series of Ricky Gervais's comedy-drama Derek, about an autograph-hunting care-home worker. Last month's pilot drew 3.2 million viewers and the first series will be broadcast in 2013. The pilot drew mixed reviews and concerns that viewers may be being invited to laugh at the central character, who appears to have learning difficulties.

Meanwhile James Wood, writer of the BBC's Rev, has said that a third series of the sitcom about an Anglican priest in the East End of London won't be on our screens until next year at the earliest as the cast "are too bloody successful" and are busy with other projects. Olivia Colman is currently appearing in Hay Fever in the West End and has had a host of other recent commitments, including Twenty Twelve, Peep Show and Tyrannosaur; Simon McBurney is busy with his theatre company Complicité; while Tom Hollander, the show's star, is making two films this year, one of them directed by Ralph Fiennes, an occasional guest on Rev.