A TV show rating heatmap is a visual data representation that uses color-coded grids to show the IMDb ratings of every episode across all seasons. It helps viewers identify quality trends, peak seasons, and episodes where a series may have declined.
Our rankings are powered by IMDb user data. We analyze average ratings per episode, season-over-season trends, and long-term consistency to provide a comprehensive view of a series' performance over time.
Top-rated series like Breaking Bad (9.5), Chernobyl (9.4), and The Wire (9.3) consistently dominate our charts. Explore prestige TV era shows and recent hits like Shogun and Andor to see how they compare to historical classics.
Use our Trending section to discover breakout hits and resurgence shows. Shows like Severance, Dark, and The Leftovers have exceptional quality-to-popularity ratios as indicated by their consistent episode ratings.
Open any show's heatmap page and click "Compare vs..." near the top, then search for a second series to jump straight to its ratings. It's a fast way to flip back and forth between two shows' episode heatmaps, season trends, and stats.
Colors represent episode ratings on a gradient scale. Green/teal shades indicate high-rated episodes (8.5+), yellow indicates average episodes (7–8.4), and red indicates lower-rated episodes (below 7). You can customize the color palette in the chart settings panel.
Yes — click the download button on any chart to export a high-resolution PNG image. The exported image includes the full heatmap, rating data, and watermark for easy sharing on social media or in presentations.
Our database syncs with IMDb regularly to ensure you're seeing current ratings. Trending shows and newly released episodes are prioritized for faster updates.
Some episodes may lack sufficient IMDb ratings to display accurately. We only show episodes with a minimum threshold of user votes to ensure data reliability. Special episodes, recaps, and pilots may also be excluded from certain views.
Episode ratings show individual episode scores from IMDb users. Season averages are calculated by taking the mean of all episode ratings within that season, giving you a quick overview of overall season quality without scanning every cell.