Question: Hershel Greene a fictional character portrayed by Scott Wilson, saves the life of Chandler Riggs's character in an American television series which airs on what? 
Sentence (from "Carl Grimes"): Carl Grimes is a fictional character from the comic book series "The Walking Dead" and is portrayed by Chandler Riggs in the American television series of the same name, which airs on AMC in the United States.
Relevant evidence: Yes