Walking Dead, Castle, Agents of SHIELD, Revolution (although I'm considering dropping that one), Big Bang Theory, and Torchwood: Miracle Day.
With my 6-year-old nephew: Spectacular Spider-Man, Justice League Unlimited, Rabbids Invasion, and Teen Titans Go! And the occasional episode of Teenage Mutant Ninja Turtles. (Things are different than when my sons watched the original cartoon. April O'Neil is now a 16-year-old girl, for one thing.)
Johnathan