The Big Bang Theory Season 4
Penny dates a couple of guys including the dense Zack who likes the "science dudes", Sheldon begins a platonic relationship with Amy, Howard reconnects with Bernadette eventually asking her to marry him, Leonard begins to date Raj's sister Priya, Penny becomes friends with Amy and expresses regret at breaking up with Leonard.
DVDs & Blu-ray include disc, cover art, and case. Bonus downloadable or promotional content may have already been redeemed. Promotional items (3-D glasses, figurines, t-shirts, posters, jewelry, books or other non-media items) may not be included. Cleaning and repair was done as required.