"The old adage "two is better than one" applies to almost everything in life—weekend days, cups of coffee, scoops of ice cream, and TV series leads. While a quick perusal of recent TV hits reveals that most series favor ensemble casts (like "Game of Thrones") or solo protagonists with plenty of supporting characters (like "The Marvelous Mrs. Maisel"), there's just something about two actors playing off of each other and demonstrating sparkly chemistry that audiences can't get enough of.
Stacker went through the best TV shows of all time and pulled the top 25 that have two distinct leads, no more, no less. To qualify, the show had to have 15,000 votes. Shows were ranked by IMDb user rating with ties broken by votes. From cult classics like "The X-Files" to more obscure series like "Carnivàle" and critical hits like "Broad City," these shows are all the better for building their stories around two highly developed characters rather than one."