Lewis (2007)

The old roles flip here. Robert Lewis is now the inspector, the plain-speaking veteran, and his new sergeant James Hathaway is the reserved, bookish one who knows the quotation and misses the obvious human detail. Their dry, affectionate sparring is the real draw of a show that is otherwise comfortable Oxford murder among dons and students. It is the most relaxed watch on this list, and you do not need to have seen Inspector Morse first to enjoy it.