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A child shows Mr. Rogers how to play Donkey Kong as Keith David shows kids how the machine works, 1983
(lemmy.world)
It's most likely from 1984 because it's an episode mostly about the Olympics. Donkey Kong debuted in 1982 and that would probably have been too early to feature it on the show in time and 1986 would have been a little late for Donkey Kong.
That said, 1982 is definitely a possibility. Or even a different year if they decided to do an Olympics episode in an off-year. Unfortunately, the website regarding the episode doesn't say.
https://misterrogers.org/episodes/getting-ready-for-the-olympic-games/
Edit: Thanks to rrconkle@lemmy.zip for getting the year right!
I was gonna say a Mr Rogers and Keith David team up is the update to Arby and The Chief that i never knew i needed.