My current setup:
Panasonic UB820 (obviously)
Sony X90K - 75" (viewing distance of 7.5ft)
Denon AVR-X1700H
Infinity Reference RC263, R162s (F/R), RS152s (Surround Backs), OWS-1s (Heights), and Monolith M12 (Sub)
JBL GX1200s in a BOSS platform underneath my couch
I am very quickly growing my collection of 4Ks and Blu-Rays, so I'm gonna enjoy this site quite a lot!