Question: Which ongoing black-and-white comic book series by Robert Kirkman inspire the post-apocalyptic horror television series starring Andrew Lincoln?
Context: "What Lies Ahead" is the first episode of the second season and 7th episode overall of the post-apocalyptic horror television series "The Walking Dead".  It originally aired on AMC in the United States on October 16, 2011.  It was written by series developer Frank Darabont (under the pseudonym "Ardeth Bey") and series creator Robert Kirkman, and directed by Gwyneth Horder-Payton and Ernest Dickerson.  In this episode, Rick Grimes (Andrew Lincoln) leads his group toward Fort Benning, Georgia, but during an encounter with a herd of zombies, colloquially referred to as "walkers", Sophia Peletier (Madison Lintz) goes missing, and a search group is formed. The sixth season of "The Walking Dead", an American post-apocalyptic horror television series on AMC, premiered on October 11, 2015, and concluded on April 3, 2016, consisting of 16 episodes.  Developed for television by Frank Darabont, the series is based on the eponymous series of comic books by Robert Kirkman, Tony Moore, and Charlie Adlard.  The executive producers are Kirkman, David Alpert, Scott M. Gimple, Greg Nicotero, Tom Luse, and Gale Anne Hurd, with Gimple as showrunner for the third consecutive season.  The sixth season received positive reviews by critics.  It was nominated for multiple awards and won three, including Best Horror Television Series, at the 42nd Saturn Awards. The Walking Dead is an American post-apocalyptic horror television series developed by Frank Darabont for AMC that is based on the eponymous comic book series of the same name by Robert Kirkman, Tony Moore, and Charlie Adlard.  Andrew Lincoln plays the show's lead character, sheriff's deputy Rick Grimes, who awakens from a coma discovering a world overrun by zombies, commonly referred to as "walkers".  Grimes reunites with his family and becomes the leader of a group he forms with other survivors.  Together they struggle to survive and adapt in a post-apocalyptic world filled with walkers and opposing groups of survivors, who are often more dangerous than the walkers themselves.  Much of the series takes place in and around Atlanta, Georgia, and Alexandria, Virginia. The seventh season of "The Walking Dead", an American post-apocalyptic horror television series on AMC, premiered on October 23, 2016, and concluded on April 2, 2017, consisting of 16 episodes.  Developed for television by Frank Darabont, the series is based on the eponymous series of comic books by Robert Kirkman, Tony Moore, and Charlie Adlard.  The executive producers are Kirkman, David Alpert, Scott M. Gimple, Greg Nicotero, Tom Luse, and Gale Anne Hurd, with Gimple as showrunner for the fourth consecutive season.  The seventh season received generally positive reviews by critics.  It was nominated for multiple awards and won three, including Best Horror Television Series for the second consecutive year, at the 43rd Saturn Awards. "The Walking Dead" is an American post-apocalyptic horror television series developed and executive produced by Frank Darabont.  It is based on the eponymous comic book series by Robert Kirkman.  The following is a list of characters from "The Walking Dead" television series.  Although some characters appear in both places, the continuity of the television series is not shared with the original comic book series. "Strangers" is the second episode of the fifth season and 53rd episode overall of the post-apocalyptic horror television series "The Walking Dead", which aired on AMC on October 19, 2014.  The episode was written by series creator Robert Kirkman and directed by David Boyd.  In the episode, Rick Grimes (Andrew Lincoln)'s group encounters a priest, Father Gabriel Stokes (Seth Gilliam), who provides them solace in his church, while Rick contemplates Abraham Ford's (Michael Cudlitz) proposition to escort Dr. Eugene Porter (Josh McDermitt) to Washington, D.C. to cure the walker virus. Andrew James Clutterbuck (born 14 September 1973), better known by his stage name Andrew Lincoln, is an English actor.  He is most recognised for his portrayal of Rick Grimes, the lead character in the AMC post-apocalyptic horror television series—based on the eponymous comic book series of the same name—"The Walking Dead".  His first major role was in the BBC drama "This Life", followed by roles such as Simon Casey in the Channel 4 sitcom "Teachers" and Mark in the Christmas-themed romantic comedy film "Love Actually" (2003). Fear the Walking Dead is an American post-apocalyptic horror drama television series created by Robert Kirkman and Dave Erickson, that premiered on AMC on August 23, 2015.  It is a companion series and prequel to "The Walking Dead", which is based on the comic book series of the same name by Robert Kirkman, Tony Moore, and Charlie Adlard.  The first season consists of six episodes.  The second season, comprising 15 episodes, premiered on April 10, 2016.  On April 15, 2016, AMC announced the series had been renewed for a 16-episode third season, which premiered on June 4, 2017.  In April 2017, AMC renewed the series for a fourth season and announced that Andrew Chambliss and Ian Goldberg would replace the departing Dave Erickson as showrunners. "Beside the Dying Fire" is the thirteenth and final episode of the second season, and 19th episode overall of the post-apocalyptic horror television series "The Walking Dead", which aired on AMC on March 18, 2012.  The episode was written by creator Robert Kirkman and showrunner Glen Mazzara and directed by series regular Ernest Dickerson.  In the episode, a huge horde of walkers invades the Greene farm, chasing Rick Grimes (Andrew Lincoln) and Hershel's groups off the premises.  Meanwhile, Andrea (Laurie Holden) is separated from the group, leaving her to fight off the same walkers that attacked Hershel's farm. The Walking Dead is an ongoing black-and-white comic book series created by writer Robert Kirkman and artist Tony Moore.  It focuses on Rick Grimes, a deputy who is shot in the line of duty and awakens from a coma in the zombie apocalypse that placed Georgia under quarantine.  He finds his wife and son, and meets other survivors, gradually taking on the role of leader among a group and later a community as Rick and his group try to survive the zombie apocalypse.
Answer: The Walking Dead