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Videos: Trailers, Teasers, Featurettes
This season the Big Bang gang’s romantic universe expands. On the rebound from Penny, Leonard falls into the arms of Raj’s sister Priya. Sheldon gets a girlfriend, or rather a friend who is a girl: Amy, a dour neurobiologist who declares herself besties with Penny. Howard and Bernadette heat up. And so do Raj and Bernadette (at least in Raj’s Bollywood daydream).
Streaming, rent, or buy The Big Bang Theory – Season 4:
Currently you are able to watch "The Big Bang Theory - Season 4" streaming on Netflix, Amazon Prime Video.