we have Monster HDMI cables and the amount they cost, i am sure there are higher ones, but this can't be the issue. i'm curious if there is a way for the UVERSE to NOT turn off every time the TV is turned off and on as i am guessing this is a sync issue? i don't know, but i LOVE this TV, but turning it off an on 10+ times to get it to recognize the signal is getting very old and it almost seems if it is getting worse.
We just purchased the PN51D550 plasma Samsung 3D set. When we connect it to our ATT U-verse box using HDMI cable, it does not recognize the box over half the time. If I unplug the HDMI cable from the TV back and replug it, it then recognizes the box and acts normally. Could this be caused by a bad HDMI cable? Our HDMI cable is high speed with ethernet. Also, after watching tv for about 5 hours, there are random sudden very loud banging sounds, similar to a door being slammed as hard as possible, accompanied by total loss of picture for a second or two. This is naturally totally unacceptable. We have the sound routed with the digital audio output to a JVC surround sound receiver (RX-778VBK), but I doubt if that would cause this problem. I would like to try a higher quality HDMI cable (ours was very inexpensive), but I don't know if that would make any difference. Please advise as soon as possible. We are currently connected with the composite cables from the U-verse box, but that means no HD picture (the U-verse box does not support component video out). I don't know if the banging sounds will occur with the composite connection, as I am currently testing this setup. If it does occur, I will add that information to this thread. Thank you.