47LS4500 problem: I cannot get my cable channels saved in the TV, therefore the LG remote cannot change channels. What a pain! I have run thru the Channel auto tuning setup several times. When I look in Channel Edit all I have saved under TV is channel 3, and under CATV channel 3. Also in the Manual tuning screen, only channel 3 shows up. I have the cable going from the wall jack to the provider (ATMC) Motorola box, and from the box it goes into the cable/antenna plug on...