Douglas has cable TV and one can thus order advertisements on it. Cable television, also called CATV, is a system by which a network of cables is used to deliver a number of audio and video channels. The signal used for cable network may be either digital or analog. According to estimates, more than half the American households subscribe to cable. Advertisements are an effective way to reach a large consumer base. Broadcast TV advertisements are extremely expensive and their reach is also diffused, lowering the specificity of the target audience (making the expense incommensurate with the efficacy of the publicity campaign). Cable TV ads are much cheaper in Douglas. They also have a more specific reach than national broadcast TV. Cable TV advertisement rates are negotiable. The rates depend on the time of the year, the zones one targets, and the size of the town. Planning ahead can make the deal cheaper. Planning the spot, the reach and the advertisement itself can help maximize its reach and effectiveness.