At the bottom of the page they've included a link to where Al Jazeera can be found online in America. Admittedly not terribly useful in a print ad, but it certainly goes some ways to pointing out they are not carried on cable here, which is presumably the point of the ad.
http://www.businessinsider.com/al-jazeera-takes-out-full-page-ad-in-sundays-nyt-2011-2
