Apple Co-Founder, Steve Wozniak will guest star on the 2nd episode of the new season! 

Apple Co-Founder Steve Wozniak guest stars on the 2nd episode of the Season. In the episode entitled, The Cruciferous Vegetable Amplification.
Keywords: the big bang theory, tbbt, casting news, spoilers, season 4, steve wozniak, the cruciferous vegetable amplification