I own a 19" flat screen LCD - HD television. It was recently unplugged for approx 7 days because of repair work to my apt. When electricity was turned back on after the repairs, I hooked the TV back to the cable and plugged it back in. I hooked the cable exactly the way it was before, but when I turn the set on a blue screen appears with the caption " no signal available ". I called my cable company and they said that it probably means the set has to be reprogrammed since it was unplugged for so long. I remember that I did have to do some sort of programming when I first bought the set, but have forgotten the details and the manual has long since disappeared. How do I reprogram my set to pick up my cable channels ? Thanks !

Televison & Video - TruTech - PM1919BXA1 19 in. LCD TV