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Weak hdtv signal and cable tv

Last response: in Home Theatre
September 17, 2010 2:31:44 PM

sometimes using the hdtv mode on my hdtv on many channels the picture blinks black constantly while on other channels it does not. when this happens i have to switch to coaxial mode. I use hi quality hd connectors and I have replaced the cable box but get the same results. The tv is LG HDTV. manufacturer says it is the cable box. Can someone tell me what is causing this

More about : weak hdtv signal cable

September 28, 2010 5:41:34 AM

too bad we have the same problem.. :( 
September 28, 2010 11:47:58 AM

Keep replacing the cable box and complain to the cable company