The Red Wedding (Game of Thrones, 2013)

The Red Wedding massacre on Game of Thrones in 2013 stunned viewers worldwide, spawning thousands of filmed reaction videos and proving that prestige TV could deliver visceral shock that defines a generation. This episode drew 5.4 million live viewers in the U.S., but its online reactions generated over 1.8 million social media mentions within 24 hours—a metric 40% higher than the average Game of Thrones episode, showcasing a cultural impact that outperforms #1 The Moon Landing Broadcast in digital-era engagement.