I have had a Samsung LN52A650A1FXZA TV for 3 years and have been very happy. I just decided to dump my 30 year-old receiver and bought a Pioneer VSX-821-K. I connected my Cable Box/DVR, a Roku box and a BlueRay player via HDMI to the Pioneer Receiver, then ran an HDMI cable out from the receiver to the Samsung TV.
Periodically, sometimes not for 20 mins, my screen goes black for about 2 seconds. Most of the time the audio remains. Sometimes this happens more frequently.
I tried switching HDMI cables and switching input jacks in the receiver and TV to no avail. Any ideas?