The 2003 Approximation Season: 9 Episode: 4 Air Date: 2015-10-12
GUEST STARS: Laura Spencer, Craig Welzbacher, Kurt Koehler, Arshad Aslam
Sheldon learns of an impending change in his living arrangements and decides to revert back to 2003, a simpler time before he met Leonard and Penny. Also, Howard and Raj form a band to play at the Comic Book Store.