LOS ANGELES – JANUARY 19: “The Einstein Approximation” — Sheldon’s (Jim Parsons, standing) search for the answer to a physics problem leads him to work at the Cheesecake Factory, where he serves his friends (left to right: Johnny Galecki, Simon Helberg, Kunal Nayyar) on The Big Bang Theory, Monday, Feb. 1 (9:31-10:00 PM, ET/PT) on the CBS Television Network. (Photo by Sonja Flemming/CBS via Getty Images)