Disney

Disney was a film studio.

The Second Doctor explained to Ben Jackson and Polly Wright that, in the early half of the 20th century, Disney filmed live-action footage when making their animated films so the animators could use the footage as a guide. (PROSE: Dying in the Sun)

Rory Williams liked "a good Disney". Both he and the Doctor had seen a Disney film in which a character named Stitch said, "No one gets left behind." (PROSE: The Glamour Chase)

Disney opened amusement parks. The First Doctor and Susan Foreman visited the decaying ruins of EuroDisney in France which, by 2134, had become the location of a feudal state called Urrozdinee. (PROSE: Urrozdinee)

Behind the scenes

 * In 1975, the BBC and the real-life Walt Disney Company coproduced a crossover between Doctor Who and their annual holiday special Disney Time: Disney Time 1975, where the Fourth Doctor (Tom Baker) introduced various clips from Disney productions.
 * Their TV channels, Disney Channel and Disney XD, aired K9 and, in the US, reruns of Doctor Who itself.