There are a variety of "Doctor Who" extra episodes, usually around holidays, anniversaries or DVD/Blu-Ray releases. However, the TARDIS and Time Lord traditionally appear in specials during two annual charity telethons: Children in Need and Red Nose Day (Comic Relief). Jessica and Phillip go through all the "mini-sodes" throughout the years, including Christmas special promos and extra scenes. They also talk "The Catharine Tate Show," "Call the Midwife," and "The Sarah Jane Adventures" specials.
A YouTube link to some of the charity specials: Click Here
In their look into the TARDIS library, the couple look at "Dimensions in Time," the 1993 Children in Need special featuring classic Doctors 3, 4, 5, 6, and 7, as well as a variety of companions. Jessica and Phillip discuss whether this 30th Anniversary special was a random mashup of "EastEnders" or an enjoyable Doctor Who experience.