River: You're doing a very good job acting like you don't know me; I'm assuming there's a reason.
Doctor: Yeah, a fairly good one, actually.
— Doctor Who, "Silence in the Library"
River: All right then, where are we? Have we done Easter Island yet?
The Doctor: Umm... yes! I got Easter Island... Jim the Fish?
River: Oh, Jim the Fish! How is he?
Rory: Sorry, I have to ask: What are you two doing?
Amy: They're both time travelers. They never meet in the right order. They're synching their diaries.
—Doctor Who, "The Impossible Astronaut"
Haruhi: Have I met you somewhere before like maybe in the past, or something like that?
Kyon: Not likely.
—The Melancholy of Haruhi Suzumiya, Episode 1