This seems to have been broadcast on UK television. What you can see looks remarkably like the N9 but with tile affair, so Windows Phone.
David T who tipped this in said: “Nokia 800 teaser ad shown on during the X Factor USA on ITV2 in the UK on the 22/10/11″
Update: The ads are running right now! I’ve just seen them myself on TV! They appear intermittently between other adverts.
It showed up between Harry Hill TV Burp and X Factor UK.
Not sure what channel it’s on (it shows comedy central at the end, though that could just be advertising that channel on another channel, not uncommon). The adverts though show UK prices and UK services.
Video MrT4J Cheers for the tip, David!