I've honestly never heard of it; by immensely popular I mean Doctor Who is so representative of the UK they absolutely had to put in some kind of tribute during the olympics, its a part of their culture, just like spider-man and the rest of marvel are a part of the culture of the United States. We're talking kids grow up on this stuff. Most of them are fairly old series, as well. And then theres a couple video games, which don't have a general thread yet for some reason.
EDIT: The word I'm looking for is iconic.