'Young Sheldon' is a spin-off of which TV series?

'Mork & Mindy' is a spin-off of which TV series? 'The Jeffersons' is a spin-off of which TV series? 'Maude' is a spin-off of which TV series? 'Rhoda' is a spin-off of which TV series? 'NCIS' is a spin-off of which TV series? 'CSI: Miami' is a spin-off of which TV series? 'Private Practice' is a spin-off of which TV series? 'Station 19' is a spin-off of which TV series?