[s10e1] The — Conjugal Conjecture

: Bernadette officiates a small outdoor ceremony while Amy plays the harp. In a rare emotional moment, Sheldon stands up to give a tribute to his two best friends, Leonard and Penny. Reception and Cast Notes

: 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

: 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. : Bernadette officiates a small outdoor ceremony while

: 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 . Sheldon is particularly distressed, going as far as

: While fans appreciated the guest stars, some critics felt the episode was overcrowded with characters, leaving little time for deep interaction between the various family members.

: The episode marks the first appearance of Penny's mother, Susan (played by Katey Sagal), and her brother, Randall (Jack McBrayer). Susan is highly anxious that their family will be seen as "white trash" due to Randall's history of manufacturing and selling meth.