Conversation so far:
Where was Ernie Kovacs born?
Ernie Kovacs was born in Trenton, New Jersey.
What was interesting about Ernie Kovacs's childhood?
Ernie Kovacs was influenced by his Trenton Central High School drama teacher, Harold Van Kirk, and received an acting scholarship to the American Academy of Dramatic Arts in 1937.
What did Ernie Kovacs do while at the American Academy of Dramatic Arts?
When Ernie Kovacs began drama school, he watched many Grade B movies, which influenced his comedy routines later. He used class vacation time to pursue roles in summer stock companies.
Was Ernie Kovacs successful after graduation from the American Academy of Dramatic Arts drama school?
No, Kovacs went back to Trenton, living with his mother in a two-room apartment over a store. He worked as a cigar salesman.
What happened to Ernie Kovacs after he was ill?
Doctors did not expect him to survive. While hospitalized, Ernie Kovacs developed a lifelong love of classical music by the gift of a radio, which he kept tuned to WQXR.
What success did Ernie Kovacs find as a result of his antics?
During the next year and a half, Ernie Kovacs' comedic talents developed as he entertained both doctors and patients with his antics during stays at several hospitals.

Question: What did his parents do after he was hospitalized?
Self-contained rewrite: What did Ernie Kovacs' parents do after he was hospitalized?