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Message: [QUOTE="NYUConn, post: 1355760, member: 6274"] DMA stands for Designated Market Area. Each DMA is determined by the broadcast reach of the local TV/Radio affiliates. In the days before cable and satellite broadcast waves only went out so far and the regions were determined by where you could recieve them. That's why the NYC DMA - No. 1 - includes North Jersey/NYC/Long Island/Fairfield County and south NY State. The measurement is television households, not population. Multiple people per household still means one television household. DMA's are used by Nielsen to determine their ratings breakdown and, most importantly these days, also helps advertisers quantify how much to charge for ads. [/QUOTE]