Seriously, if you're considering whether or not to view One Foot in the Grave, just skip ahead and watch it right now—you can read this afterward. It ranks among a small number of British sitcoms I consider exceptionally well-done. In fact, reflecting on it, I’m thinking about compiling a list on my profile to share these shows. Those who were around when One Foot in the Grave was airing might only recall fans ent…