This script turns your progress bar into something that looks similar to a heatmap, where warmer colors (e.g. red) indicate more comments and cooler (blue, black) indicate less comments. Thus, you can easily find the most interesting moments in Videos.

Install:

1. Install a user script manager (follow Step 1)
2. Open the TwitchVODEnhancer.user.js and click Raw
3. Confirm installation
4. Go to your Twitch "connection" settings, scroll to the bottom and click Register your application
5. Copy your app's Client ID and in the script replace "ENTER_YOUR_CLIENT_ID" with it.

Demo:

High quality, small size gifv: http://i.imgur.com/YQU4kqe.gifv