Product Name: Program Selector Model Number: SM-808 Place of Origin: CHINA Specification: 20.8*14.3*3 (cm) 1.increase the channels received from old TV and store 1000, suitable for the future network of cable TV station 2.PLL full implement tuner , programs becomes more clearly and still 3.save power , turning off without signal for ten minutes 4.designed with audio and video input and output and RF output interface 5.low price and save space , no need to buy a new TV 6.set with plug which TV set will be turned off