Samsung's HDTV-based App Store has doubled in size since it was launched at CES but apparently that's not enough, so it's putting up 500 stacks plus several home theater packages in the "Free the TV Apps" contest. For those skilled in Java, XML and Flash Lite who are interested in getting their app up on TVs and Blu-ray players next to ESPN Next Level, Hulu Plus, a soon to launch 3D Video On Demand app and all the rest, the contest runs from today through November 11, and requires a working app submission and video description. By the end, 14 developers will walk aw