A door-to-door salesman comes to the Cooper residence and convinces Young Sheldon’s mother Mary to sign him up for piano lessons. Young Sheldon initially finds the idea of music to be stupid and pointless, but when his instructor (guest star Kate Mulgrew) tells him that it’s just an applied form of math, he gains a … Continue reading Young Sheldon, “Sing Us a Song, You’re the Bazinga Man”