[NO SPOILERS] 'The Rains of Castamere' episode was almost singlehandedly responsible for popularizing the trend of reaction videos on YouTube. Fans who had already knew what was coming had set up cameras to record the reactions of friends & family to the Red Wedding.

[u/-thirdatlas-]

[u/lebezio]

GoT no matter how far it fell off had a generational impact on culture, TV and internet.