Chernobyl

HBO's Chernobyl, a five-part 2019 miniseries, achieved a staggering 9.4 IMDb rating at its peak, the highest ever for a TV show on the platform. It dramatized the 1986 nuclear disaster with near-documentary accuracy, earning 10 Primetime Emmy Awards — a record for a limited series in a single season. In terms of historical impact, it outperforms #8 Succession in global viewership per episode, drawing over 8 million live viewers for its finale and sparking a 30% spike in online searches about nuclear safety. The miniseries also set a bar for emotional accuracy: it cost $11 million per episode, yet its harrowing final scene of survivors holds a 97% critic approval on Rotten Tomatoes, surpassing any comedy or drama on this list. No limited series has ever matched its combined critical acclaim and real-world engagement.