Inspired by his hero, Albert Einstein, Sheldon tries his hand at the violin. Also, Mary and Connie secretly buy a pregnancy test when Mary thinks she's pregnant
Quest roles:
Matt Hobby(Jeff Difford), Rex Linn(Tom Petersen), Wyatt McClure(Billy Sparks), Melissa Peterman(Brenda Sparks), Nancy Linehan Charles(Peg), Melissa Tang(Ms. Fenley), Billy Gardell(Herschel Sparks), John Rubinstein(Rabbi Schneiderman), Martin Garcia(Mr. Nelson), Becki Dennis(Employee), Casey Childs(Receptionist (voice))