They say entertainment reflects the time it's made in.
was popular around the time Space Jam
came out. Bogart was a popular '40s actor. It would make sense for him to appear in '40s Looney Tunes shorts.
I can listen to an old TV show or movie and without watching it know what decade it was made in just be hearing the music they used in it.
You know a TV show is old when they make a reference to some tech that's no longer in popular use or if they reference some old TV show that's no longer on TV.