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 [email protected] for getting the year right!
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.