Ep 4. The Wiggly Finger Catalyst

In The Big Bang Theory season 5 episode 4, titled "The Wiggly Finger Catalyst," we see Raj trying to move on from his ex-girlfriend, Lucy, by dating a new girl, Emily. However, he finds himself struggling to overcome his selective mutism around her, leading Howard and Bernadette to help him out by suggesting a somewhat unorthodox solution.

Meanwhile, Sheldon and Amy find themselves in an argument over who should take care of an injured bird they found. Their disagreement leads to some unexpected revelations about each other and their relationship. And to add to the chaos, Penny's flirtatious behavior towards Leonard's friend, Stuart, creates some tension between the couple.

In this episode, we see each of the main characters dealing with their own personal struggles while also trying to navigate the ups and downs of their relationships with one another. As always, there are plenty of witty one-liners, geeky references, and humorous moments to keep fans of the show entertained. Overall, "The Wiggly Finger Catalyst" is another fun and enjoyable episode of The Big Bang Theory that's sure to leave viewers smiling.