TV Shows on DVD has the latest on the March 13 release of Teenage Mutant Ninja Turtles – Season 4. In addition to the 39 episodes of the classic series’ fourth season, extras for the DVD will feature: “Underneath the Shell: Slash, the Evil Turtle,” “The Shredder: Inside the Turtles’ Most Fearsome Foe” and “Fresh from the Oven: A Recipe for a Cowabunga Cheese Pizza, Fit for a Ninja Turtle.”