While That ‘70s Show gave sitcom icon Betty White a role that subverted her screen persona, That ‘90s Show retconned this surprising twist. That ‘70s Show was never the most surprising sitcom on television. The series had its fair share of twists but, unlike a lot of some offbeat later sitcoms, That ‘70s Show wasn’t overly invested in deconstructing what viewers expected to see from the genre. Instead, That ‘70s Show was mostly a cozy hang-out show that relied on its cast’s chemistry to garner laughs from well-worn plots.

https://screenrant.com/that-70s-show-betty-white-subverts-image-twist-90s-retcon/