Conversation so far:
walking dead is based on what comic book
The Walking Dead is an American post-apocalyptic horror television series for AMC based on the comic book series The Walking Dead by Robert Kirkman, Tony Moore, and Charlie Adlard.
what is the show walking dead about
The Walking Dead is about survivors of a zombie apocalypse, trying to stay alive under near-constant threat of attacks from the mindless zombies, colloquially known as walkers.

Question: which networks have the show
Self-contained rewrite: which networks have the show walking dead