The Cube (US pilot, 2010)

The Cube was a British game show that aired on ITV from 22 August 2009 to 8 August 2015 and was hosted by Phillip Schofield. The show offers contestants the chance to win a top prize of £250,000 by completing challenges from within a 4m × 4m × 4m Perspex cube.

In 2010 CBS filmed a pilot, hosted by Neil Patrick Harris and filmed in a UK studio (The Fountain Studios in London), but for some reason they didn't pick up.