Young Sheldon’s Big Bang Theory Howard Cameo Supports A Popular Theory!

Howard's Young Sheldon season 5 cameo supports a popular theory for The Big Bang Theory claiming that Sheldon is narrating his autobiography.

Simon Helberg revisited his sitcom roots when he reprised his role as one of Sheldon's (Jim Parsons) Pasadena friends in the CBS spin-off series. But aside from the pair's bickering, which is always fun to see, Howard's Young Sheldon cameo also solidified a popular theory that Sheldon is actually in the process of working on his autobiography post-The Big Bang Theory.

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