I've put up a review of the below over at my new, Doctor Who only b--g - Wandering In The Fourth Dimension if anyone's interested.

Fourth Doctor and Mrs Wibbsey

CAST:

The Doctor - Tom Baker
Mrs Wibbsey - Susan Jameson
Father Gregory - Tom Baker
Tsar - Michael Jayston
Tsarina - Suzy Aitchison
Boolin - Simon Shepherd
Lucius - Sam Hoare
Server Robot / Rebel - Paul Chequer
Server Robot / Rebel - Grant Gillespie
Server Robot / Rebel - Gabriel Vick

Writer: Paul Magrs
Director: Kate Thomas
Publisher: AudioGO
Release Date: 8th September, 2011