2016-04-01, 20:37
Since you have Onkyo TX-NR747, you're HD audio capable (ATMOS & DTS:X included, up to 5.1.2). On the low-end, DN2820FYKH w/Windows 10 would give you what you want, with HD Netflix, Amazon VOD and YouTube. Or, something like Dell Inspiron 3050 (which I just got to try). On the higher-end, i3-3xxx and up. Others may be able to throw out other options.