Top 100 Review Channels for Countdown with the Longest Total Duration
This list represents the top 100 YouTube review channels rankings for Countdown based on the longest total video duration across all videos on their channel. This only includes channels that have created review videos. Numbers are retrieved via the YouTube API and updated daily. Channels are also listed with their latest review for Countdown uploaded to YouTube.
| Channel | Duration | Latest Video | ||
|---|---|---|---|---|
| 1. |  Bower's Game Corner | 4:28 | Bower's Game Corner #92: Countdown! Review | 4:28 |
| 2. |  ProVector 2.0 | 3:05 | Mental Hospital IV - Очень страшно! (Обзор от PV Reviews) | 3:05 |