Will the real Conan O’Brien please stand up?

I appreciate a fine German lightshow like the next guy, but there’s something strange going on. Can somebody please explain to me how there can be two different takes of the same gag from the “Late Show with Conan O’Brien” on YouTube?

There’s this one:

[youtube=http://www.youtube.com/watch?v=pdBeDBt3ACg&rel=1]

And then, there’s this one:

[youtube=http://www.youtube.com/watch?v=gJQSC5yM9Jw&rel=1]

Odd, isn’t it?