A few years ago, Chalene sold the rights for the Powder Blue productions (which sold Turbo Kick dvds) to Beachbody. They had a clearance sale and sold rounds for about $7.00 each. I bought a bunch of them. Beachbody now owns them.
Beachbody is EXTREMELY involved in looking around for and closing down auctions of their products. That is why you don't see any on ebay or Amazon.
"I can't change the world, but I can change the world in me. I rejoice!"-Rejoice by U2