The cable network called it the "biggest telecast for any drama series in basic cable history among all viewers."
"Thank you to the fans for making 'The Walking Dead' such a tremendous success. We are honored and humbled that television's largest adult audience resides on AMC. So many people on both sides of the camera worked tirelessly on this project, and I thank and congratulate each of them for their amazing contribution," Charlie Collier, president of AMC, said in a statement.
The show stars Andrew Lincoln and Norman Reedus as leaders of a small band of survivors on the run from flesh-eating zombies.