: A subplot begins involving Howard being tracked down by Colonel Williams (Dean Norris) from the Air Force, who is interested in the quantum gyroscope he, Leonard, and Sheldon invented.
: Much of the episode deals with the awkward aftermath of Leonard’s father, Alfred, and Sheldon’s mother, Mary, leaving dinner together the night before. Sheldon is particularly distressed, going as far as to ask Alfred if he "defiled" his mother. [S10E1] The Conjugal Conjecture
: Sagal’s role as Penny’s mother was a nod to her previous role as Kaley Cuoco’s mother on the sitcom 8 Simple Rules . : A subplot begins involving Howard being tracked
" The Conjugal Conjecture " is the season 10 premiere of , which originally aired on September 19, 2016. The episode picks up immediately after the season 9 finale, focusing on Leonard and Penny’s second wedding ceremony—intended to be a more traditional celebration for their friends and family. Key Plot Points : Sagal’s role as Penny’s mother was a
