Twisted (9pm, ABC Family) - Regina's mom wants Danny expelled from school in the wake of the soccer team's poisoning incident. Meanwhile, Kyle is displeased to discover that the mayor hired an additional investigator to look into Regina's murder.
Who Do You Think You Are? (9pm, TLC) - Actress Zooey Deschanel ("The New Girl," left) investigates reports of abolitionists in her father's Quaker family background in Pennsylvania.
Doomsday Preppers (9pm, National Geographic Channel) - A prepped-colony leader teaches his son to hunt for wild boar and builds gallows for lawbreakers in the Season 3 premiere.
Drunk History (10pm, Comedy Central) - Reenactments in Detroit include Ralph Nader's feud with General Motors and a friendship between Harry Houdini and Sir Arthur Conan Doyle that deteriorates into a bitter rivalry. Reenactors include Luke Wilson, Owen Wilson, Alfred Molina and Jason Schwartzman.
Suits (10pm, USA) - Harvey and Stephen join forces for Ava's defense. Also, Mike asks Rachel for help with a case, but complications arise when her parents end up coming close to learning his secret.
Heroes of Cosplay (10:30pm, Syfy) - Six passionate fans prepare for the debut of Wizard World in Portland, Ore., in the series premiere of this reality show chronicling comic-book super fans who attend conventions dressed in costumes.