The Cube (partially found unaired U.S. game show pilot; 2010)
From The Lost Media Wiki
The Cube is a popular British game show that first aired in late 2009 on ITV. It's setup was very similar to Minute to Win It, where every episode one contestant would try to finish a series of challenges using common household objects and gradually win more and more money. It was a huge hit when it was released, receiving many awards and international versions [1]. A version in the United States was planed to air on CBS in early 2010, with Neil Patrick Harris selected to host[2]. A pilot episode was filmed, but since it was never picked up by CBS, it was never broadcasted.