From Bleeding Cool:

Mentioned only in passing at last year’s Hitchcon, the first* TV adaptation of Douglas Adams’ Dirk Gently’s Holistic Detective Agency has now been officially announced by the BBC for their autumn/winter season. What do we know? That it’s going to screen on BBC 4 (not BBC 3 as originally planned), and that the plot will see Gently try “to solve the disappearance of a cat from an old lady’s house” – ie. it will be an adaptation of Adams’ first Gently book, at least in part. The script is by Howard Overman, creator of Misfits and Vexed, and according to his agent, the runtime is 60 minutes

H/T to IO9