Dirk Gently (Score 5, Interesting)

I haven't seen all of the Dr. Who episode, but so far they've mentioned Professor Chronotis at St. Cedd's College, Cambridge. The Professor is a main character in Dirk Gently's Holistic Detective Agency (the first DG novel), and he resides at the College (which is fictional btw). The book was published in 1987 and set at a similar time, so 8 years after this script was written.

Thought it was an interesting thing to point out :)