Saturday

Saturday was a day of the week. The Doctor, in both his fourth and tenth incarnations, declared that he liked Saturdays. (PROSE: Shada, TV: The Stolen Earth)

At least some schools, such as Coal Hill Secondary School, were closed on Saturdays. On every such afternoon, Susan Foreman would use the time to babysit six-year-old Malcolm. (PROSE: Time and Relative)

Behind the scenes
Doctor Who currently,, airs regularly on Saturdays on BBC One.