In the last two episodes of The Americans, (Season 4) Amazon X-ray reported an anachronism. 1984 scenes included several 1986 and 1987 automobile models. I never would have noticed.
I did notice a very brief long shot of a Commodore 64 or an authentic-looking recreation during a scene in which Matt Beeman showed Henry Jennings how to connect his computer to the family television via an antenna switch.
In the season finale, we were also introduced to Philip's son Mischa, who apparently intends to escape the USSR and look for Philip in the United States. Mischa's maternal grandfather gives him a blanket-wrapped bundle containing passports, old Canadian dollar bills and some old USSR bank notes. They actually went to the trouble of getting authentic 1961-issue rubles for what was a very brief shot.
In a recent post, I mentioned my modest collection of coins, currencies and curiosities. Actually, I buy and sell, and make a little money. It's profitable, but my interest is more of a hobby than a business. Anyway, that's how I know the rubles were authentic 1961 rubles. I've sold a lot of them. Here's a sample from my inventory.