What happens when you take the two greatest things in the entire Universe and put them together?
If you are a Trek and a Who fan, then watch the whole thing, until the very end of the teaser for Part II. It is without any fear of exaggeration or contradiction when I say that it is the best thing ever to have happened ever in the history of everness. Ever.
How can you not love this framegrab?
Oh? What's that? You prefer Space:1999? Behold!