What was the first all black TV show on Network television? What year did it debut?

"Amos 'n' Andy" premiered on CBS in June 1951 with some genuine promise. Based on the decades-old radio hit performed by two white men, Freeman Gosden and Charles Correll, it boasted network TV's first all-black cast.

Nope. Earlier.

I'd be curious to know what it is because all I can find are Amos and Andy, then the Jeffersons and Good Times which is alter than A&A.

I'd say "Sugar Hill Times". It was an all black variety show that debut Sept 1949 and only lasted 4 episodes.

Got it, Georgia ! See the Internet Movie Data Base for more information. Also see Black Firsts, by Jessie Carney Smith, Viable Ink Press, p.38, and Ebony Magazine, Vol. 1, p268.