On TV Tonight: Friday March 23, 2012

NET 8PM 8:30PM 9PM 9:30PM 10PM 10:30PM
ABC Shark Tank Primetime: What Would You Do? 20/20
CBS NCAA Basketball Tournament
CW Nikita Supernatural
FOX Kitchen Nightmares Fringe
HBO Real Time with Bill Maher
NBC Who Do You Think You Are? (R) Grimm (R) Dateline NBC
MISC Merlin (Syfy)
Spartacus: Vengeance (Starz)
USA Fairly Legal In Plain Sight

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