THE BIG BANG THEORY “The Prestidigitation Approximation” Season 4 Episode 18 March 10, 2011 News, The Big Bang Theory Watch a sneak peek and check out photos from the upcoming episode of THE BIG BANG THEORY Season 4 Episode 18 titled “The Prestidigitation Approximation” which airs on Thursday March 10 at 8pm on CBS. You can read all our The Big Bang Theory coverage here. Episode Synopsis: THE BIG BANG THEORY ” The Prestidigitation Approximation ” Season 4 Episode 18 – Leonard must choose between new girlfriend Priya and his friendship with Penny. Meanwhile, Howard drives Sheldon crazy with a magic trick, on THE BIG BANG THEORY, Thursday, March 10 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Click Any Photo Below To Enlarge Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)
