The change of format that Doctor Who had undergone in Season 22 (45 minute episodes, moving back to one episode per week on Saturday evenings) had been reasonably successful, with ratings around the 6-8 million mark [REF].
Although Doctor Who had been recommissioned, it yet again underwent a format change, with episodes reduced in length back to 25 minutes, and the full season running to only 14 episodes (a total of 350 minutes running time), which worked out at almost half the total of Season 22 [REF].