*dead

It's a dupe, but looks like the original has gone dead:

http://www.videosift.com/video/Be-Kind-To-The-Future-Back-To-The-Future-vs-Be-Kind-Rewind

Dupe:

http://www.videosift.com/video/Boxing-Kangaroo-Cuts-Loose-on-his-Owners

Dupe:

http://www.videosift.com/video/Scary-Mary-Mary-Poppins-Recut

^
Looks like it. The original has about an extra 1:20 or so at the start, but it's the exact same content. If I remember correctly sifts like that have been declared dupes in the past since its the same content without any significant changes.

*dupeof=http://www.videosift.com/video/Leslie-Nielson-Farts-on-Morning-Show

Dupe:

http://www.videosift.com/video/Sesame-Street-mocks-o-Reilly-with-Spill-o-Rielly

*promote

^
It's because this was the original

^
*dupeof=http://www.videosift.com/video/Ultra-Realistic-Modern-Warfare-Game-Offers-Engine-Repair

*dupeof=http://www.videosift.com/video/No-dive-board-No-Problem

Dupe:

http://www.videosift.com/video/Doctors-Diagnosis-Your-mother-is-so-fat

Dupe:

http://www.videosift.com/video/No-dive-board-No-Problem

Dupe:

http://www.videosift.com/video/2012-Trailer-Actors-Version

Dupe:

http://www.videosift.com/video/Malaysian-cute-girl-sings-a-karaoke-song-of-Anuar-Zain