Cleveland Orenthal Brown Sr. is a fictional character from the animated television series Family Guy, and its spin-off series The Cleveland Show. He is a neighbor and friend of the Griffin family and is best known for his mild-mannered deadpan delivery. His established profession was that of a deli owner, before he switched over to being a postal worker after his return to Family Guy.

"The Splendid Source" is the 19th episode of the eighth season of the animated comedy series Family Guy. Directed by Brian Iles and written by Mark Hentemann, the episode originally aired on Fox in the United States on May 16, 2010. The episode follows Peter, Joe and Quagmire as they set out on a journey to find the ultimate source of all the world's dirty jokes. Along the way, the group is reunited with their old friend, Cleveland Brown, while traveling through Stoolbend, Virginia. Their journey becomes much more difficult than expected when they are kidnapped and taken to a remote island. There, they discover a secret society of the world's greatest geniuses at the center of all the world's dirty jokes. The plot is based on a short story of the same name written by Richard Matheson and first published in the May 1956 edition of Playboy magazine.