[s5e4] | The Wiggly Finger Catalyst

: Unlike most episodes that cover a few days, this one spans an entire month to account for Sheldon growing a mustache and Raj learning basic sign language.

: It was a massive success upon release, drawing over 13.9 million viewers and winning its timeslot.

: Emily is played by Katie Leclerc, known for Switched at Birth , who is hard of hearing in real life. [S5E4] The Wiggly Finger Catalyst

gave the episode a 67/100 , noting that while the framework for jokes was limited, the ideas were successful and genuinely funny.

Critics were generally positive, though some felt the sub-plots overshadowed the main narrative. : Unlike most episodes that cover a few

The episode splits into two main threads that emphasize the personal quirks of the core cast:

“One of the funniest moments in the show... it never gets old.” Reddit · r/bigbangtheory · 7 years ago Key Trivia gave the episode a 67/100 , noting that

“This episode was way too hilarious... one of the best in the series.” Reddit · r/bigbangtheory · 7 years ago