Game shows on Instagram: "Hole in the Wall is a high-energy physical game show based on the Japanese game show concept often called “Brain Wall” (or colloquially “Human Tetris”).  The basic idea: contestants (usually in teams) stand facing a large moving wall made of lightweight material (often polystyrene or foam). The wall contains a cut-out shape (“hole”) that contestants must match by contorting their bodies to fit through as the wall approaches them on a track. If they align themselves cor