when do penny and leonard first get together
The Recombination Hypothesis "The Recombination Hypothesis" is first episode of a two episode arc featuring Leonard and Penny attempting to restart their relationship that has been one of the major plot lines and driving forces of the series. The arc concludes with the next episode "The Beta Test Initiation" where Penny and Leonard return from their date. The first scene is a salute to the original pilot where Leonard and Sheldon climb the stairs wearing similar outfits and they spot Penny through her apartment door wearing the same shirt from the pilot.[6] Sheldon is disappointed to discover that a Mr. Spock cardboard stand-up he ordered is a portrayal of Zachary Quinto's Spock not Leonard Nimoy's Spock. According to Bill Prady, the co-creator of The Big Bang Theory, approval from Paramount, J.J. Abrams (producer of the new Star Trek series) and Zachary Quinto was required in order to mock Spock.[6] Also, this is the first time that an entire episode is a "dream-sequence", a unique style of storytelling,[6] and is the second Chuck Lorre show to achieve the "dream-sequence" story, after Two and a Half Men in the episode "Frodo's Headshots".