I believe the folks from the series “Gilligan’s Island” were filming the intro to the series in Honolulu the next day, and when you watch them steaming out of the port, there is a flag at half mast in the background.
Found this from a Fox News article. More TV trivia related to that day:
“Rehearsals for the pilot episode of “Bewitched” began on November 22, 1963 — just hours before the assassination of President John F. Kennedy.
The tragedy was particularly difficult for the show’s star, Elizabeth Montgomery (Samantha Stephens), and her husband, the show’s producer, Bill Asher.
‘They were friends with JFK,’ Herbie J. Pilato, author of “Twitch Upon A Star” and other books about classic television told Fox News.
‘Asher produced Kennedy’s birthday bash where Marilyn Monroe sang “Happy Birthday, Mr. President.” It was a very hard time for everybody.’”