âThe Herb Garden Germinationâ — Sheldon and Amy experiment on their friends by spreading gossip, while Howard takes a big step in his relationship with Bernadette, on THE BIG BANG THEORY, Thursday, April 7 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Pictured: Kaley Cuoco, left and Kunal Nayyar, right.
Photo: Justina Mintz/CBS
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