The Big Bang Theory Season 5 Complete Pack Now

: Leonard Nimoy provides the voice for a Sheldon-sized Spock action figure, and Brent Spiner appears alongside series regular Wil Wheaton .

: The milestone episode, "The Recombination Hypothesis," sees Leonard and Penny attempt a "beta test" of their relationship after their initial breakup, marking a central narrative shift for the series. The Big Bang Theory Season 5 Complete Pack

: Amy Farrah Fowler (Mayim Bialik) and Bernadette Rostenkowski (Melissa Rauch) are promoted to main characters, providing a female social circle for Penny that mirrors the guys' group. : Leonard Nimoy provides the voice for a

Available on both Blu-ray and DVD , the season set includes several exclusive extras: "The Recombination Hypothesis