If you are reading this and thinking about watching One Foot in the Grave, stop reading and go watch it immediately! You can always read this later. This is one of a handful of shows that I think of as nearly perfect Brit sitcoms. In fact, thinking about it, I want to create a list on my profile to share them. A person who was around when this show ran but who didn’t watch it can be forgiven if all they remember is fans yelling out character Victor Musgrove’s signature line, “I do not believe it!” Because people did go nuts over that. But there is a lot more to the show. There is black humor…