I will give you an iMacro script for Unliking Videos from your Youtube channel. With this script you will be able to easily and on autopilot unlike all the videos you have liked. The script was created by me, so I guarantee it works great. By purchasing this offer you will get the Youtube Unlike Videos iMacro script and a word file that describes how to install and use everything. If you have any questions, let me know.
Script updated and working well into 2019!