Youtube reuse without getting penalized for duplicate content

[rivsrush]

Hello,

Our customer has a personal professional YouTube channel with a series of professional videos.
She had opened a new business and we had been asked to work on make this existing personal professional videos to work on the new business. How do we bind/link the existing YouTube channel so that the new business benefits from the already posted videos.

Thank You,

[mcneely]

Simply merge her "personal" account to the new "branded" account --

[support.google.com...]

[rivsrush]

Wow, great!
How simple is that!
Thank you!

[mcneely]

No worries - Good Luck

[rivsrush]

Thank you!
I am not done yet :)
In fact all videos have epic prolog, contains a owners personal name.
My question is, should we keep existing video as is, or alter/replace with updated form contains a new business name, update titles, descriptions...? How about existing links, bookmarks? Effectively you can't yt update video. You can delete, alter and post new one.
Thank you!