Cabletelevision Advertising Bureau

http://www.thecab.tv/main/cablenetworks/marketinterconnects/index.shtml

Major Market Interconnects

For national or local advertisers who are looking to reach consumers at the DMA/Spot Cable level; interconnects enable them to reach the right subscribers. Interconnects, which combine two or more local cable systems and distribute a program or commercial signal simultaneously, allow the advertiser to reach their target with only one buy, one commercial tap and one invoice. This section lists the main interconnects in the Top 50 DMAs.