Thread:OttselSpy25/@comment-20607870-20170416105504/@comment-20607870-20170418175726

http://www.bbc.co.uk/doctorwho/classic/episodeguide/dimensionstime/detail.shtml

Incidentally, the BBC have a continuity section on the official site (link above), so by the wiki's rules -wouldn't that make DIT valid?

Best wishes pal.