A child shows Mr. Rogers how to play Donkey Kong as Keith David shows kids how the machine works, 1983
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.
The Yahoo season of Community (the sixth and final season.) He played a guy (if I remember this right, it's been a while) who invented a bunch of stuff but all of his inventions got stolen. They all thought he was bullshitting at first, but then it all turns out to be true.
Kieth David in They Live is a fuckin masterpiece. His 15 hour Battle Royale with Rowdy Roddy Piper is something that should be on everyone's must see list.
I like him in pretty much anything. I even enjoyed him in the shitty final season of Community Yahoo did when they tried and failed with doing TV shows (I will never forgive them for not letting someone else continue on with Other Space).