The Big Bang Theory Season 5 Complete Pack May 2026

: 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.

: Stephen Hawking makes his legendary first on-camera appearance, while astronaut Mike Massimino joins as a recurring guest during Howard’s space arc. The Big Bang Theory Season 5 Complete Pack

: 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. : Amy Farrah Fowler (Mayim Bialik) and Bernadette

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

The season is notable for bringing together icons of science and science fiction: