Oct 11, 2018 — ... firmware update due October 11. The rollout will initially activate eARC on the 9.2-ch Onkyo TX-RZ920 and TX-RZ830 network A/V receivers.. Jul 31, 2019 — Hey all, I've got an LG C9 OLED TV arriving tomorrow and as it's a hurried upgrade from my old Samsun