The Big Bang Theory S11 E01 - The Proposal Proposalsvenlie (25)in #tbbt • 7 years ago "The Proposal Proposal" is the first episode and season premiere of the eleventh season of the American sitcom The Big Bang Theory. The episode aired on Monday, September 25, 2017. ▶️ DTube ▶️ IPFS #thebigbangtheory #steemit #dtube