[s9e9] The: Platonic Permutation

To avoid awkwardness, Sheldon prepares topics like pets, vacations, and the weather.

Elon Musk appears as himself, sharing a moment with Howard while washing dishes. [S9E9] The Platonic Permutation

Amy reveals she has been on six dates with three different men since their breakup. Episode Information Series/Season The Big Bang Theory , Season 9, Episode 9 Original Air Date November 19, 2015 Director Mark Cendrowski Key Cast To avoid awkwardness, Sheldon prepares topics like pets,