Jon Batiste departs The Late Show / Anne Heche "not expected to survive" / Harry Caray hologram creeps out Fox viewers

PLUS: Lifetime releases The Gabby Petito Story trailer less than a year after Gabby Petito's disappearance.

Jon Batiste leaves The Late Show with Stephen Colbert after 7 years — Louis Cato is taking over as bandleader
Colbert announced on Thursday's Late Show that Batiste, who has been absent this summer, i…