My SCENE TV button doesnt find my TV's internal cable tuner. I've set it up normally. ARC works, SCENE button for bluray player works, everything except this.
Everytime I press SCENE TV, it shows only the "main screen" of the receiver with a wallpaper. With bluray player and TV, the Panny always shows "EC/HDMI2". AVR shows AV4.
Sooo, how I can make it to fetch signal from the HDMI between the tv and avr? Thanks!

RX-V671(Firmware 1.39), Panasonic ST50. (European models, if matters)
HDMI 1.4 cable from AVR's HDMI OUT to Panny's HDMI2(ARC)