I recently purchased a denon avr-1612. I have everything hooked up through HDMI wires. I have an xbox, xable box, & apple tv hooked up to the system & 1 hdmi out running to a samsung tv. I am experience times, maybe every hour or more when the apple tv is running, showing movies or streaming music that the receiver stops the audio & picture for a few seconds & comes back on. I have had the apple tv replaced, still the same issue. I have messed with the settings & tried it on PCM instead of auto & the same thing happens. The cable box & xbox do not cut out. I'm thinking its either the receiver or something that the receiver is trying to decode that isn't working properly coming across streaming netflix from the apple tv. Any help is appreciated.