All episodes from the first eight seasons of the US sitcom. The series revolves around two university physicists, Leonard (Johnny Galecki) and Sheldon (Jim Parsons), their beautiful, free-spirited neighbour, Penny (Kaley Cuoco-Sweeting), and their friends, Howard (Simon Helberg) and Rajesh (Kunal Nayyar). This set includes 25 discs. Not for individual resale.