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

"The Launch Acceleration" (Season 5, Episode 23) of The Big Bang Theory features Howard grappling with a fear of space travel while his mission is moved up to his wedding date. The episode, originally aired in May 2012, also covers Leonard's ill-timed proposal to Penny and Amy’s Pavlovian experiments on Sheldon. Full episode details and streaming options are available on Fandom . Watch www xrysoi se The Big Bang Theory - S05E23