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"): In both forms of media, Carl is the son of primary protagonist Rick Grimes, and his wife Lori Grimes, and is one of the longest-surviving characters and one of the few original Atlanta survivors still alive.
Relevant evidence: No