Also, several characters from St. Elsewhere once appeared on Cheers, and since St. Elsewhere is just a figment of an autistic child's imagination, then Cheers, Frasier, The Tortellis, and Wings are also a figment of the child's imagination.
Warren Coolidge, the center on The White Shadow
Carver High school team was recoginized as so on St. Elsewhere
when he worked at the hospital. He was supposed to be at Boston College on schorlarship as his high school coach was an alumni but he blew out his knee IIRC.