[s4e18] The Prestidigitation Approximation ★ Free

Priya asks Leonard to stop hanging out with Penny.

Simon Helberg (Howard) is actually an accomplished pianist and has a background in performing, which lends to the dexterity needed for the card tricks shown. [S4E18] The Prestidigitation Approximation

Sheldon struggles with the idea that something can be "simple" yet beyond his immediate understanding. The Subplot: Priya and Leonard Priya asks Leonard to stop hanging out with Penny