"The Hard Easy" is the twenty-third episode of the fourth season of the American animated television series "Adventure Time".
 The episode was written and storyboarded by Tom Herpich and Skyler Page, from a story by Patrick McHale, Kent Osborne, and Pendleton Ward.
 It originally aired on Cartoon Network on October 1, 2012.
 The episode guest stars Brian Doyle-Murray as Prince Huge and Jonathan Katz as the Mudscamp elder.
Robert Singer is an American television producer, director and writer.
 He is known for his work on "Supernatural" where he serves as an executive producer, director and occasional writer.
 The character Bobby Singer was named after him.
 A fictionalized version of Singer appears in the season 6 episode "The French Mistake" played by Brian Doyle-Murray.
 Singer also created the series "Reasonable Doubts" and has worked as a producer and director on various television series, including "".
 He also served as a producer for the films "Cujo" and "Burnt Offerings"
Caddyshack is a 1980 American comedy film directed by Harold Ramis and written by Brian Doyle-Murray, Ramis and Douglas Kenney.
 It stars Michael O'Keefe, Chevy Chase, Rodney Dangerfield, Ted Knight, and Bill Murray.
 Doyle-Murray also has a supporting role.
 The film was later dedicated to producer Douglas Kenney, who died shortly after the film's release.
Small White House is a 1990 American drama film directed and produced Richard Newton.
 The musical score was composed by Nicolas Dodet.
 The film starring Enrico Boetcher, Brian Doyle-Murray, Richard Duardo, Heather Elias, Shahira Eversole and Kathy Foy in the lead roles.
"SpongeBob SquarePants" is an American animated television series created by marine biologist and animator Stephen Hillenburg that debuted on Nickelodeon in the United States on May 1, 1999.
 The regular voice cast consists of Tom Kenny, Clancy Brown, Rodger Bumpass, Bill Fagerbakke, Mr. Lawrence, Jill Talley, Carolyn Lawrence, Mary Jo Catlett and Lori Alan.
 Most one-off and background characters are voiced by Dee Bradley Baker, Sirena Irwin, Bob Joles, Mark Fite and Thomas F. Wilson.
 Throughout the show's run, it has employed numerous guest stars from many ranges of professions.
 Repeat guests include Ernest Borgnine, Tim Conway, Brian Doyle-Murray, Marion Ross, John O'Hurley and Michael McKean.
Brian Doyle-Murray (born Brian Murray, October 31, 1945) is an American actor, voice artist, comedian and screenwriter.
 He is the older brother of actor/comedian Bill Murray, and the two have acted together in several films, including "Caddyshack", "Scrooged", "Ghostbusters II", "The Razor's Edge", and "Groundhog Day".
 He co-starred on the TBS sitcom on "Sullivan & Son," where he played the foul-mouthed Hank Murphy.
 he also appeared in the Cartoon Network original animated series "The Marvelous Misadventures of Flapjack" as the surly Captain K'Nuckles and a pirate ghost, The Flying Dutchman from the Nickelodeon animated series, "SpongeBob SquarePants", he appears in a recurring role as Don Ehlert on the ABC sitcom "The Middle".
Live at the Foxes Den is a 2013 drama film.
 It marks the directorial debut for Michael Kristoff, and stars Jackson Rathbone, Jocelin Donahue, Jack Holmes, Pooch Hall, Brian Doyle-Murray, Bob Gunton and Elliott Gould.
 It was shot in the greater Los Angeles area and was released on December 6, 2013.
This is an episode list of the Fox television series "Get a Life".
 The series starred Chris Elliott as Chris Peterson, a 30-year-old paperboy who still lives with his parents (portrayed by Elinor Donahue and Elliott's real-life dad Bob Elliott).
 Also starring was Sam Robards as Chris' best friend Larry, Robin Riker as Larry's wife (and Chris' main antagonist) Sharon, and Brian Doyle-Murray as Chris' surly second-season landlord Gus.
SpongeBob SquarePants is an American animated television series created by marine biologist and animator Stephen Hillenburg for Nickelodeon.
 The series chronicles the adventures and endeavors of the title character and his various friends in the fictional underwater city of Bikini Bottom.
 The series' popularity has made it a media franchise, as well as the highest rated series to ever air on Nickelodeon, and the most distributed property of MTV Networks.
 As of 2015, the media franchise has generated $12 billion in merchandising revenue for Nickelodeon.
Club Paradise is a 1986 American comedy film directed by Harold Ramis starring Robin Williams, Peter O'Toole, and Jimmy Cliff.
 The film reunites director / co-writer Ramis with most of his SCTV co-stars – "SCTV" cast members Andrea Martin, Eugene Levy, Rick Moranis, Joe Flaherty, and Robin Duke play supporting roles in the film, as does co-writer Brian Doyle-Murray, a former "SCTV" staff writer.

Question: What channel did Brian Doyle-Murray air on when he acted in SponseBob SquarePants? 
Answer: Nickelodeon