WATCH: David Muir looks back at Catherine O’Hara’s life and legacy

The comedy legend’s career spanned decades with roles in “Home Alone,” “Best in Show,” “Schitt’s Creek” and more.

​The comedy legend’s career spanned decades with roles in “Home Alone,” “Best in Show,” “Schitt’s Creek” and more.  Entertainment The comedy legend’s career spanned decades with roles in “Home Alone,” “Best in Show,” “Schitt’s Creek” and more.