I have an AWA 42" LCD TV and it is continually dropping 2 networks out of 5. I have another TV on the same antenna and it never has any problems. Most of the time I have to do an auto retune but it is not working today. Also if i hold the antenna lead and touch the antenna socket I get a small electrical tingle. This happens when the power is turned off but not when the power is on. Any clues anyone?