Steven Moffat talks to the Radio Times

The Christmas edition of the Radio Times features an interview with lead writer on Doctor Who, Steven Moffat. Describing how he wrote A Christmas Carol holed up in a hotel room in Los Angeles during the volcanic ash cloud this year, the writer said:
The full article appears in the double-issue, which features Wallace and Gromit on cover, out now until the 27th December. Doctor Who had its own Christmas cover for the previous issue, also available in the shops - you can see this and other Doctor Who covers on the Radio Times website.