The announcer introducing the Mercury Theatre on the Air's production of "The War of the Worlds" names Orson Welles and Howard Koch as the writer. While Koch did write the script, he was not named in the introduction to the original broadcast.
In 1938, car radios were expensive luxuries, and were not standard equipment in cars at the time.
The 1975 TV Guide promotional advertisement listed October 31 as the original Mercury Theater "War of the Worlds" air date; in reality, it was broadcast on October 30.
Welles was 23 when his "War of the Worlds" production aired. Paul Shenar was 39 when portraying Welles.