This was going to be the last episode of the series, as NBC announced on May 10th, 2017, that it was being canceled. However, the internet "erupted" with protests the next day, and the network's response was unprecedented. On May 13th, 2017, NBC "uncanceled" the show and ordered 10 more episodes.
The episode takes place on February 20th, 1954, with the episode originally airing on February 20th, 2017.
Lucy reminds Wyatt, "It's 1954. You'd be arrested for being gay." Whether one would actually have been arrested, it wasn't until 2003 in Lawrence v. Texas that all US laws making homosexuality illegal were invalidated.