the neilsen media research company, chances are you have heard of neilsen at some point, probably inelation to tv ratings, or neilsen ratings, neilsen measures who's watching what all over the country. and one of the things that they do in pursuit of that is that they rank every single tv market in the united states from largest to smallest. the largest tv market in the country, number one on the list, probably not surprisingly, is new york city. the new york city market has 7 million homes with tvs. it's the top market in the country. number two on the list is the city of los angeles. number three on the list is chicago. and on and on it goes. neilsen ranks a grand total of 210 markets in the country. 210. and number 210 on the list, the single smallest market in the entire country, is a place called glendive, montana. glendive has just over 4,000 homes with tvs. it represents 0.004% of the entire u.s. tv watching population. but glendive, montana, is now national news. and that's because of this. >> cleanup efforts are under way in glendive while residents are told not to drink wat