Final answer:
Hugh Hefner's Playboy magazine became an instant success in 1953 due to reaching a niche audience not served by TV.
Step-by-step explanation:
Hugh Hefner's Playboy magazine became an instant success in 1953, thanks in part to reaching a niche audience not served by TV.
Unlike other magazines that targeted women, Playboy targeted men and offered a unique blend of articles, photographs, and entertainment that appealed to its specific audience.
By doing so, Playboy was able to attract a dedicated and loyal readership, which contributed to its success.