CW3 and PF use copyrighted original compositions. The copyright is held by Knuckle Cracker. So you won't have to worry about the background music in either of those two games triggering some issue on youtube. If you do get a trigger with either CW3 or PF on youtube, let me know.
CW1 and CW2 use non exclusively licensed music. So you may get copyright triggers on them. For CW1 and CW2 I'd recommend muting the music. You can replace it with free music or just leave it off when making your videos.