Originally Posted by nguyen1025
I bought a 42pg20 last week and I am having problems with it picking up any HD channels whatsoever. I have two sources, my university cable service which comes with 4 HD channels and a RCA HD antenna. With my 19 inch Magnavox LCD HDTV connected it picked up all 4 HD channels for the cable source and around ~25 from the antenna. With my 42pg20 hooked up to the same sources, it picks up absolutely no HD channels. It picks up all the analog cable sources fine. From what I'm aware the 42pg20 comes with ATSC/NTSC/Clear QAM Tuner. This sounds like a tuner problem, can anyone help? I really don't want to do the hassle of a return or warranty...
Did you connect the new LG to your antenna and re-scan the channels? Or did you just scan the cable channels? Maybe you're doing something wrong. When you switch the input cable from cable to antenna (or visa versa) you have to re-scan the channels for the new source.
Also, i briefly had a 19" Magnavox LCD and it mapped the digital & HD QAM channels on completely different channel numbers than on my Panasonic plasma and HP LCD TV so apparently different brands place the channels on different numbers. The QAM channels on all three of my TVs are all on different channels. So if ABC-HD is on say channel 102.34 on your Magnavox the same channel might be mapped to 121.83 on your LG, so maybe they're all there but in different locations than on your Magnavox.
There are several owners of this model in the "50PG20 Review" thread, maybe someone there can give some detailed help: http://www.avsforum.com/avs-vb/showthread.php?t=1031850