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The Best TV Shows finales (Biggest positive difference between average season ratings and finale)
(files.catbox.moe)
Interactive version: https://public.tableau.com/app/profile/bo.mccready8742/viz/TheBestTVShowFinalesDataPlusTV/BestTVShowFinales
Source: https://reddit.com/comments/1f42jj3
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Yeah... I question the efficacy of the methodology. A show that had nothing but perfect 10 episodes during its entire run wouldn't make this list. But a real data-driven way to assess this escapes me... It's the kind of question that would do better by survey, because elements a single number doesn't capture, like how memorable the episode was and how it impacted the series as a whole which the episode ranking does not capture are absolutely relevant to what makes a good finale. I guess the fairest data-driven way to measure a good finale would be to capture the general ranking of the series as a whole before the finale, and then after it, and the biggest shift would indicate the finale with the strongest impact, but this is still not a perfect estimate for "best".