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Season 1 - Jan. 03, 2005
Season 2 - Sep. 19, 2005
Season 3 - Nov. 15, 2006
Season 4 - Jan. 07, 2008
Season 5 - Feb. 02, 2009
Season 6 - Sep. 25, 2009
Season 7 - Sep. 24, 2010

Medium Season 5 Episode 8
HD
Overview:
Allison has a dream about a game show that can detect lies, and upon waking up she hears a buzzer in her head whenever someone tells her a lie. Allison’s new talent is put to good use during a murder investigation.