Premise: "The Cruciferous Vegetable Amplification" is the second episode of the fourth season of "The Big Bang Theory" that first aired on CBS on September 30, 2010. It is the 65th episode overall. The episode features a guest appearance by Steve Wozniak, co-founder of Apple Inc.
Hypothesis: The Cruciferous Vegetable Amplification was filmed before the the airing of the first episode of season 4 of big bang theory