https://screenrant.com/frasier-reboot-show-alan-cheers-plot-hole-fixed/

The Frasier reboot was poised to make a significant Cheers plot hole, but it effectively solves any inconsistency issues in its very first episode.

Frasier Reboot Explains A Cheers Plot Hole 34 Years Later (https://screenrant.com/frasier-reboot-cheers-dead-father-plot-hole-explained/)

The Frasier reboot has explained a Cheers pothole that's 34 years old. Not only that, but it turned it into the revival's best joke so far.