Docu-Hub addon will give you hundreds of totally free documentaries. Most documentary films presented are played by YouTube and most of them are in HD (720p). You can also add subtitles while watching a video. Unfortunately some documentaries don't have subtitles.
If you don't already have an addon for subtitles, you can visit our page, how to add subtitles on Kodi.
Tutorial – How to Install
Docu-Hub Addon XBMC KODI
Follow these steps carefully.
1 – Select System.
2 – Select Add-ons.
3 – Select Install from zip file >> plugin.video.docuhub-*.*.*.zip.
4 – After installation, you will get a message in the bottom right corner stating that the Add-on is Enabled. Go back to Home screen.
5 – Select Videos >> Add-ons, and finally you will find the add-on.
6 – The following image shows some of the many documentaries available on addon.