I have a Onkyo TX -SR607, I have attached hardware by HDMI the following:
out - TV
HDMI 1 - TV (cable)
HDMI 2 - VCR/DVD
HDMI 3 - blank
Hdmi 4 - Apple TV
The menu panel on the tv shows I am receiving
TV
HDMI 2 - TV
HDMI 1 - Digital Media Adaptor
HDMI 3 - DVD
HDMI 4 - __
Tested the DVD player on...