Are you kidding? They've said it a couple of times. I'm not going to dig through all the updates and tweets and random interviews to find the exact quotes but I've read a couple of times where they say they have lots of ideas for videos and they are choosing parts that that they want to show us.
I've followed all the updates since the skyrim announcement, read all the interviews, followed all of the game informer coverage, and been on the forums everyday. I also have a twitter account and I follow pete hines, elder scrolls, and the bethblog. Not one mention EVER about video footage.
So now its my turn and I'll finish how you started...are you kidding?