Final answer:
The winner of the first televised debate is subjective, with TV viewers favoring Kennedy and radio listeners favoring Nixon, though Kennedy's TV appeal is considered to have helped his campaign.
Step-by-step explanation:
It's important to consider the context of the first televised debate between John F. Kennedy and Richard Nixon when deciding who won the debate. Many television viewers felt Kennedy won due to his calm demeanor and camera-friendly appearance. On the contrary, radio listeners often thought Nixon had the upper hand because of the substance in his responses. Analyzing this event from a historical perspective, Kennedy's performance is widely credited with helping swing the voter opinion in his favor due to television's visual impact.