The change made in Young Sheldon indirectly explains why The Big Bang Theory had to end. Despite its continued popularity, the geek-centric sitcom ended its run in 2019 after 12 seasons. Interestingly, CBS was actually looking to renew The Big Bang Theory for two more years to continue capitalizing on its massive fan base. When the show ended, Young Sheldon was just in its sophomore year and was just working to find its own identity as a show.
Fast forward to 2022, Young Sheldon has established itself as CBS' premier comedy and is now the biggest network sitcom. Admittedly, it still hasn't reached the same level of popularity that The Big Bang Theory enjoyed at its peak, but with season 6 and season 7 already guaranteed, the spin-off has time to expand its base. One particular way that Young Sheldon has changed since it started is diversifying its storytelling to give focus to all members of the Cooper clan and not just Sheldon (Iain Armitage). Show producer Steve Molaro said that it's a deliberate move to differentiate it from The Big Bang Theory.
Related: Young Sheldon Is Breaking Away From Big Bang Theory (& That's A Relief)
What Molaro seem to have forgotten though is that The Big Bang Theory was an ensemble sitcom. When it premiered in 2007, there was ample focus on all of its characters. It was only in later years that it became laser-focused on developing Sheldon's (Jim Parsons) arc, relegating everyone else as supporting players. This was actually what spelled the end for the geek-centric sitcom. Parsons exited The Big Bang Theory because he felt like the sitcom had done everything it could with his character. Throughout its 12-year run, Sheldon had a satisfying arc, starting as a loner geek to a happily married
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