Drunk History 10 p.m., Comedy Central
So then [hic] Harry Houdini and Sir Arthur freaking Conan [hic] Doyle were fast friends, but then, um, they disagreed and were just rivals [hic]. Yeah man [sounds of ice clinking in a glass]. This Detroit-based episode of the show about anecdotes, alcohol, history, and comedy, re-creates the failed friendship between the two famous dudes, as well as Ralph Nader’s feud with General Motors. S’fun [barf].
Heroes of Cosplay 10:30 p.m., Syfy
This new reality show looks at the subculture of people who are into competitive costume-making. They wear their creations, based on the characters they admire in comic books, graphic novels, movies, TV, and video games, to comic conventions across the country. Full story for BostonGlobe.com subscribers.