The original 1963 followed by the Voyage of the Damned theme.
Sorry, did you say Voyage of the Damned? There's a reason they retuned that after just one episode you know; cos it was AWFUL.
I always thought the theme as it was used in series 2 and 3 was pretty much perfect, and I love the new version too (although it was a bit of a culture shock at first), despite it being a shame we only got the middle eight once. I like the next time trailers with no music, maybe the end credits should take the sting straight into the middle eight if there's a trailer before them?