He also worked on the BAFTA award-winning animation sequences of the 1981 Hitchhiker's Guide television adaptation.

Davies wrote and directed the documentaries The Making of the Hitchhiker's Guide to the Galaxy and Doctor Who: Thirty Years in the TARDIS.

Davies later expanded the documentary for video release under the title More Than Thirty Years in the TARDIS.

Davies has also worked on the DVD extras for other BBC titles, such as Dad's Army and The Andromeda Anthology.

Davies also directed the Doctor Who spin-off video Shakedown: Return of the Sontarans and two episodes of the Sky One science-fiction drama Space Island One.