I found season 1 of The Survivors easily enough, although it looks like season 3 might be available as well. I use prowlarr (https://wiki.servarr.com/en/prowlarr) which searches a big list of various sites and integrates easily enough with qbittorrent.

There's a handful of old British TV that I've bought on DVD because I couldn't find anyone seeding it.

(Just bought the three seasons of Survivor on DVD now)