In 1976, he earned his Doctor of Education from the University of Massachusetts Amherst.
His dissertation discussed the use of Fat Albert and the Cosby Kids as a teaching tool in elementary schools.
Cosby pursued a variety of additional television projects and appeared as a regular guest host on The Tonight Show and as the star of an annual special for NBC.
In 1969, he returned with another series, The Bill Cosby Show, a situation comedy that ran for two seasons.
Cosby was found guilty of three counts of aggravated indecent assault and sentenced to three to ten years in prison in September 2018. Seinfeld said of Cosby: "He opened a door for all of us, for all of the networks to even consider that this was a way to create a character, was to take someone who can hold an audience just by being up there and telling their story. He created the whole idea of taking a quote-unquote 'comic' and developing a TV show just from a persona that you see on stage." In 1965, Cosby was cast alongside Robert Culp in the I Spy espionage adventure series on NBC.
Cosby enlisted in the Navy and served as a hospital corpsman at the Marine Corps Base Quantico in Virginia; at Naval Station Argentia in Newfoundland, Canada; and at the National Naval Medical Center in Maryland. While many comics of the time were using the growing freedom of that decade to explore material that was controversial and sometimes risqué, Cosby was making his reputation with humorous recollections of his childhood. I Spy became the first weekly dramatic television series to feature an African-American in a starring role.In 1972, using the Fat Albert character developed during his stand-up routines, Cosby created, produced, and hosted the animated comedy television series Fat Albert and the Cosby Kids which ran until 1985, centering on a group of young friends growing up in an urban area.Throughout the 1970s, Cosby starred in about a half-dozen films, and occasionally returned to film later in his career.I Spy finished among the twenty most-watched shows that year, and Cosby would be honored with three consecutive Emmy Awards for Outstanding Lead Actor in a Drama Series.During the series' run, Cosby continued to do stand-up comedy performances and recorded a half-dozen record albums for Warner Bros. He also began to dabble in singing, recording Silver Throat: Bill Cosby Sings in 1967.Cosby produced the spin-off sitcom A Different World, which aired from 1987 to 1993.He also starred in The Cosby Mysteries from 1994 to 1995 and in the sitcom Cosby from 1996 to 2000, and hosted Kids Say the Darndest Things from 1998 to 2000.Cosby began his career as a stand-up comic at the hungry i in San Francisco during the 1960s.He then landed a starring role in the television show I Spy, followed by his own sitcom The Bill Cosby Show, which ran for two seasons from 1969 to 1971.; born July 12, 1937) is an American stand-up comedian, actor, musician, author, and convicted sex offender.He held an active career for over six decades before being convicted and imprisoned for sex offenses in 2018.