I didn't.
On December 26, 2016 at 21:06, BRIAN PHOENIX said...
The problem of no setup menu being output to tv monitor from Denon AVR-3803 receiver has been solved by Brian Phoenix. The answer is as follows. The setup menu will not appear on the screen if headphones are plugged into the unit.
Thank you for everyone who responded to my problem.
This is exactly why I ask all those friggin' questions, and why I insist on people telling us everything. And even with all that pickiness, headphones never would have seemed a possible source of this issue.
I'm still interested in knowing: which video output of the Denon do you use to view the menu on the TV?