Huge news: Nielsen buying Arbitron Dec 19, 2012 20:45:26 GMT -7 Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by CAwasinNJ on Dec 19, 2012 20:45:26 GMT -7 Nielsen is of course the big dog in TV ratings. Arbitron is the big dog in radio. Nielsen is also in web impressions tracking. I think it's hard to overstate of huge this is. What do you think this means for both the radio & TV industry?