However, there is no documented evidence of such an episode existing. "The Roy Rogers and Dale Evans Show" ran from 1951 to 1957, and while they did sometimes incorporate musical performances, there is no record of a dedicated minstrel show episode.
It is possible that you are misremembering the episode or that it may have been a local broadcast and not part of the nationally syndicated series.
If you can provide more details, such as:
* Where you may have seen this episode: (TV station, streaming service)
* Other information about the episode: (Specific musical numbers, any other characters involved)
I can try to help you find more information.