An adaptation of Charlaine Harris' Southern Vampire novels focusing on the human and vampire residents in a small Louisiana town, though in multiple seasons their world has expanded to include shape-shifters, werewolves, fairies, telepaths, witches and other supernatural beings, whose stories, in some cases, have been thousands of years in the making.
These are shows that require so little attention to plot details that you can enjoy them while distracted by a task, like cleaning. While these shows are entertaining (and sometimes trashy), it would arguably be a waste to spend your time sitting down to watch them.