Owning an OPPO 203, a Yamaha Aventage 3050 and a Vizio P 65" 2016 model, I would suspect that instead of the current connection, using one hdmi out on the Oppo, I would use two, One to the AVR for sound and one for the TV to produce DV. I think that's correct.
Yamaha Aventage RX-A3050
Emotiva XPS-5 Amp, Music Hall MMF 5.3 SE Turntable w/Ortophon Bronze Cart.
Paradigm Studio 40's in the front, a CC-370 Center, ADP 370 Surrounds,2 monitors for the back surrounds, 4 Cinema 110's as heights,Paradigm UC12 sub & an SVS PC13 Ultra
Vizio 2016 P65-C1