The brief roles that stand out from the previous seasons.
Has Sheldon finally met his match? First appearing in the season three finale, former “Blossom” star Mayim Bialik has signed on to play a recurring love interest named Victoria. Bialik herself is a real-life geek, having earned a Phd in neuroscience from UCLA.
Leonard and Penny try hanging out alone, and Sheldon must overcome his fear of birds.
Also, watch The Big Bang Theory weeknights at 7:30/10C on CTV