How to duplicate a Youtube video

I need to duplicate some of my videos and post them on another channel. I have original footage pre watermark etc...
What do I do to make Yt treat the videos like they were new?
thanks in advance for any answer

Removing the watermarks won't change shit. YouTube will detect a content id match on it buddy. You can bypass it but it's not worth the time(After editing, you might not like the quality)

Thanks but... I need a video today and no testimonial would do it that fast.
I was thinking about cutting the main video and inserting some pictures. Then completely change the intro and outro. Maybe adding a background music.
I use after effects for cutting/editing and movie maker for adding pictures and watermark.
Would that work? I'm asking here because just testing it would not produce appreciable results.

I have rode yesterday that you can use same video on another channel as long as it is on the same gmail account

Almost done with the video. Edited it heavily. Hope youtube won't recognize it.
Can't use the same gmail account as I want to test some view provider and I can't compromise my main account.