I've had the 42lk520 set for about 20 days now. I got it from Amazon. I've notice an issue which i don't know if its a problem or normal; this is my first HDTV, so i don't know.
When i turned the cable box on, the LED display on the cable box goes from 480i to 1080i, you can see the switching. If the tv is on first and you turn on the cable box, you get a picture for split second during 480i, then black screen for split second, to picture again during 1080i. My issue is when i turn both on at the same time (via harmony 300i universal controller) or one after another really fast. I get a picture on the tv, then black screen then picture, then black screen, etc. This happens on a loop. Sometimes i get a "no signal" message. I have to turn tv off and back on to get a constant picture.
Another related issue. I have an Western Digital live TV plus. Whenever i pause a video during playback and i switch the input, from hdmi2 to hdmi1, if i try to switch back after a few minutes, i get a "no signal" message. The WD live tv is on and working fine. I have to turn either the tv or the WD live tv off and on for the picture to come on.
Both inputs are connected via hdmi.
Since this is my first HDTV set and i'm within 30 days, i want to make sure it doesn't poop out on me in a few months or right after 1 year.
So is this normal with HDTVs connected via hdmi?