[s5e23] The Launch Acceleration Official

: Sheldon wears red long johns under his tuxedo at the fitting to "protect his urethra," claiming he looks like "The Flash getting ready to be wed".

: Leonard and Penny decide to "speed things up" in their relationship. However, Leonard takes this too far by accidentally proposing to Penny during sex, which immediately kills the mood. While Penny says "no" to the proposal, she confirms they are still dating. [S5E23] The Launch Acceleration

: The phone call Howard receives is from "Dave Roeger at NASA," named after a real-world programmer who worked with producer Bill Prady. If you'd like more details, I can look into: The specific jokes or quotes from the tuxedo fitting scene. Details on the season finale that follows this episode. Background on the real NASA/Soyuz science referenced. : Sheldon wears red long johns under his

: This meal is a "continuity nod" to the Season 3 episode "The Spaghetti Catalyst". While Penny says "no" to the proposal, she

"The Big Bang Theory" The Launch Acceleration (TV ... - IMDb

Casey Sander (Mike Rostenkowski), Robert Clotworthy (Voice of Dave Roeger) The tuxedo store where the guys get fitted for the wedding Notable Trivia

: Howard is initially relieved when his NASA mission is canceled due to technical issues with the Soyuz capsule. However, his relief is short-lived as the mission is reinstated and moved up to launch just two days before his wedding to Bernadette. Despite his fear of space, Howard is pressured to go when he realizes that Bernadette’s father, Mike Rostenkowski, only respects him because he is an astronaut.