[SPOILERS WITHIN!] I am rewatching Doctor Who from the beginning. I do not expect to watch every episode but I am having a good time with season 1. I’ve made it through 1963 and am working on 1964. In season 1 episode 21, The Sea of Death, Arbitan gives our four travelers watches (at minute 20:24) which transport them across the sea. This looks quite similar to Jack Harkness’ means of transportation, with perhaps a Time Lord’s modification.