I saw the ads for Hole in the Wall, and they annoyingly played the premiere when Family Guy was supposed to be on(speaking of Family Guy, in a prime example of why networks should play reruns, I saw Stewie Kills Lois for the first time last week.. including the "to be continued" they ripped off of Star Trek).
I thought the show looked stupid.
It is copied from a segment of a Japanese show.. the segment is called Brain Wall but is called online "Human Tetris". The Japanese one is actually a little funny, mostly because of the absurd or impossible looking holes they send at contestants. Most of them, though, are easy to fit through if you assume a position different than what you see, or just jump through the damn hole.
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http://jp.youtube.com/watch?v=UG0guVq_0uo