PBS announced three new shows at the Television Critics Association press tour yesterday. Ken Burns’ film The Tenth Inning picks up where his 1994 Baseball left off and will air in Spring 2010. The producers of Carrier will bring another behind-the-scenes reality series to pubTV next year: Circus, which follows the Big Apple Circus around the country. Dinosaur Train, a new science show for preschoolers from The Jim Henson Company, follows the adventures of Buddy, a preschool-aged Tyrannosaurus Rex, and his family of Pteranodons. In other news, PBS said it will alter its filmed production of Ian McKellan’s King Lear on Great Performances so the King’s manhood is hidden from view. How PBS would handle the nudity was one of the critics’ favorite topics at last year’s summer press tour.