For those not wanting to fork out $5,000 CAD for a 77" OLED, I'd recommend checking out the TCL 6-series 75" Mini-LED QLED. I just got my hands on one, and am loving it so far. It comes remarkably close to OLED black levels, gets brighter, has better colours, and won't break the bank (75" is $2,000 CAD).
I have a 48" LG CX OLED that I'm using as a PC monitor, and it's amazing for gaming at 4K 120hz, but the TCL handles 99% of movie scenes just as well. You'd have to put them side by side to really see the difference.
I've also tried the 2019 Vizio PX Quantum (backlight/panel issues, no 4:4:4 support) and the Sony 800F (not bright, horrible black levels, but great processing). Vizio has also pulled out of the Canadian market, so there's that too.
