That's a continuity error, that is. It shouldn't be there.
Ace, in Lungbarrow

The Discontinuity Guide

In 1995, Paul Cornell, Martin Day, and Keith Topping published The Discontinuity Guide, a guide to all sorts of things about the TV series Doctor Who. Subsequently, another website, The DiscContinuity Guide, has used the format to cover Big Finish's monthly Doctor Who audios.

This site aims to cover almost everything not covered by the other two guides. This includes the new series, the books, the comic strips, and various Doctor Who spin-offs.

A separate page explains the Discontinuity Format.

There are also a number of Boxed Sections that expand on particular continuity issues.

Feel free to Contact Us if you have any questions about the site, or any technical problems with it. You may also want to check out our Privacy Policy. There is also an About Us page, if you really want to read one.