So I will buy the 976. However I am concern over the handshaking on long cables run. My cable length is exactly 50 ft. Should I be concern? Also most of the movies I watch are on Prime video. with HDR I do not have 4K. And also I am more into 2.1 sound above all. Having said that. Should I pull the trigger? I am looking to upgrade my good old trusty 1050 if it matters...