Title: Dudley Cosby, 1st Baron Sydney
Content:  Cosby was the son of Pole Cosby, of Stradbally, Queen's County, and Mary, daughter of Henry Dodwell. Dudley Cosby was his grandfather.
Title: House of Cosbys
Content:  House of Cosbys is an American animated sitcom created by Justin Roiland for the film festival Channel 101. The series centers on Mitchell Reynolds (Jeff Davis), who builds a cloning machine to make duplicates of his favorite comedian, Bill Cosby. The show stars Davis, Roiland, and a rotating cast of performers, many of whom were participants at Channel 101. The series premiered January 30, 2005, and was the number one-rated program on the site for three months. Four episodes of the series were created, which debuted at Channel 101 screenings and were posted online thereafter. The series concluded on June 26, 2005 with an "unofficial" fifth installment. The series garnered media attention when lawyers for Cosby sent Roiland and site administrator Dan Harmon a cease and desist letter in June 2005, which resulted in the series' ending.
Title: Denise Huxtable
Content:  Comedian Bill Cosby became interested in developing The Cosby Show partially because he was unimpressed with popular family sitcoms airing at the time, some of which often depicted children talking back to and disrespecting their parents without suffering serious consequences. Cosby intended for The Cosby Show 's children to remain intelligent while emphasizing that "their parents were always smarter and—most importantly—in charge." Originally, Denise was intended to be the eldest of the Huxtable family's four children. However, Cosby also wanted the show to feature a character who was an example of parents Cliff and Clair having already successfully raised a college-educated child, hence the writers introduced eldest sibling Sondra, a Princeton University graduate, in the second episode, while Denise was relegated to the role of the Huxtable's second eldest child instead. 
Title: Cos (TV series)
Content:  Cos is an American sketch comedy/variety TV series that debuted on the ABC Network in September 1976. It was hosted by comedian Bill Cosby and featured an ensemble cast who would perform sketches each week. The show was unsuccessful in the Nielsen ratings and was cancelled by November 1976 and replaced with The Hardy Boys/Nancy Drew Mysteries. Cosby appeared on this series concurrently with his starring role in Fat Albert and the Cosby Kids and the film Mother, Jugs & Speed.
Title: Bill Cosby
Content:  Cosby married Camille Hanks on January 25, 1964. Together, they had five children, Erika (b. 1965), Erinn (b. 1966), Ennis (1969–1997), Ensa (1973–2018), and Evin (b. 1976). Their only son, Ennis, was murdered on January 16, 1997, while changing a flat tire on the side of Interstate 405 in Los Angeles. Cosby's daughter Ensa died of renal disease on February 23, 2018, while awaiting a kidney transplant. The Cosbys have three grandchildren. Cosby, a Protestant, maintains homes in Shelburne, Massachusetts, and Cheltenham, Pennsylvania. Cosby hosted the Los Angeles Playboy Jazz Festival from 1979 to 2012. Known as a jazz drummer, he can also be seen playing bass guitar with Jerry Lewis and Sammy Davis Jr. on Hugh 
Title: Cosby (TV series)
Content:  Set at the corner of 33rd Ave and 1539 Blake St. Astoria in Queens, Cosby portrayed grumpy Hilton Lucas, a New York City man forced into early retirement from his job as an airline customer service agent. His wife Ruth was again played by Phylicia Rashad. Initially, Telma Hopkins was cast as Ruth Lucas; however, she was recast after she reacted poorly to Cosby's tendency to ad libitum. The couple had one daughter, Erica Lucas, initially portrayed by Audra McDonald and later portrayed by T'Keyah Crystal Keymáh. Doug E. Doug played Griffin Vesey, a foster son the Lucas family took in when he was younger. Griffin occasionally tried to win Erica's affections, but they decided 
Title: Bill Cosby: Himself
Content:  Nearly all of Cosby's routine concerns the trials and tribulations of parenting, frequently illustrated with anecdotes involving his own family. Occasionally, he compares these with stories from his childhood. Other themes include grandparents, going to the dentist (in which monologue he uses his "Mushmouth" speech pattern to imitate a dental patient anesthetized by Novocaine) and people who drink too much or take drugs.
Title: Bill Cosby
Content:  CBS, Cosby, again co-starring Phylicia Rashād, his onscreen wife on The Cosby Show. Cosby co-produced the show for Carsey-Werner Productions. It centered on Cosby as Hilton Lucas, an iconoclastic senior citizen who tries to find a new job after being downsized and, in the meantime, gets on his wife's nerves. Madeline Kahn co-starred as Rashād's goofy business partner Pauline. Cosby was hired by CBS to be the official spokesman of its Detroit affiliate WWJ-TV during an advertising campaign from 1995 to 1998. Cosby also hosted a CBS special, Kids Say the Darndest Things on February 6, 1995, which was followed after as a full season show, with Cosby as host, from January 9, 1998, to June 23, 2000. After four seasons, Cosby was canceled. Its last episode aired April 28, 2000. Kids Say the Darndest Things was terminated the same year.
Title: Bill Cosby
Content:  Cosby's greatest television success came in September 1984 with the debut of The Cosby Show. Cosby, an advocate for family-oriented humor, co-produced the series, held creative control and involved himself in every aspect of production. Plots were often based on ideas that Cosby suggested while in meetings with the writing staff. The show had parallels to Cosby's actual family life: like the characters Cliff and Clair Huxtable, Cosby and his wife Camille were college-educated and financially successful, and they had five children. On the show, Cosby played the role of an obstetrician. Much of the material from the pilot and first season 
Title: The Cosby Show
Content:  film or television, but Carsey and Werner were fans of Cosby's stand-up comedy and thought it would be the perfect material for a family sitcom. Cosby originally proposed that the couple should both have blue-collar worker jobs, with the father a limousine driver, who owned his own car, and the mother an electrician. With advice from his wife Camille Cosby, though, the concept was changed so that the family was well-off financially, with the mother a lawyer and the father a physician. Cosby wanted the program to be educational, reflecting his own background in education. He also insisted that the program be taped in New York City instead of Los Angeles, where most television programs were taped. The Huxtable home exterior was filmed at 10 St. Luke's Place near 7th Avenue in Manhattan's Greenwich Village (although in the show, the residence was the fictional "10 Stigwood Avenue").

Question: who was the grandfather on the cosby show?
Answer: Earle Hyman.