Freeman Gosden & Charles Correll's legendary radio show, Amos 'n' Andy, transitioned to television in 1951 on CBS with an all-African American cast. This version lasted just 2 years, while the radio series, which launched in 1928 as a regional entry in Chicago, ran under different formats for 32 years.
The actors cast for the television series were instructed by the producers to try to replicate the vocal patterns created by Gosden & Correll. Come to think of it, Tim Moore (Kingfish) may have pulled off a perfect mimic of Correll's characterization.
As you'll see, this comes across as a typical sitcom of the period, though I'd imagine some of Gosden & Correll's original scripts were modified and/or adapted for television. Take for example "Andy Gets Married".
In 2012, a Houston-based online network began airing the series, so there's a chance that, say for example, Aspire could pick up Amos 'n' Andy to reintroduce it to a national audience.