GET READY TO SALUTE ONE LAST TIME, AS SHELDON RECORDS THE FINAL INSTALLMENT OF "FUN WITH FLAGS," ON "THE BIG BANG THEORY," THURSDAY, NOV. 20

"The Champagne Reflection" - Sheldon says a tearful goodbye to "Fun with Flags." Also, Leonard, Howard and Raj look for something significant in a dead professor's research, and Bernadette is shocked to learn her co-workers' true feelings from Penny, on THE BIG BANG THEORY, Thursday, Nov. 20 (8:00-8:31 PM, ET/PT), on the CBS Television Network.

REGULAR CAST:

Johnny Galecki (Leonard)
Jim Parsons (Sheldon)
Kaley Cuoco-Sweeting (Penny)
Simon Helberg (Wolowitz)
Kunal Nayyar (Koothrappali)
Mayim Bialik (Amy)
Melissa Rauch (Bernadette)

GUEST CAST:

Stephen Root (Dan)
Levar Burton (Himself)
John Ross Bowie (Kripke)
Paul Wilson (Professor Thorne)

STORY BY: Steven Molaro, Tara Hernandez and David Saltzberg, Ph.D

TELEPLAY BY: Jim Reynolds, Steve Holland and Dave Goetsch

DIRECTED BY: Mark Cendrowski