What's a TV detective without a partner who challenges them, makes them better professionally, brings new expertise to the table, and fulfills their lives in ways they never knew they needed? Whether it's a wacky buddy cop dynamic or a tense match-up rife with complex conflict, the crime-solving duo has become one of the most entertaining TV genres around. We've come to know many small-screen sleuths over the years, and we have to say that most of them have been paired with near-perfect partners. But what if we switched things up a bit? Here are 9 pairs of TV detectives we would totally tune in to watch together, even though they hail from completely different series.