okay I (finally) figured out how to set-up the HDMI Control "pass-through" function such that you can watch TV (or any other HDMI connected source) without using/powering-ON your Denon AVR. I'm using an AVR-2112CI and Samsung UN40D6420UF LED TV in my case:
[a] Power-ON Denon AVR using remote. Power-ON TV. Select SAT/CBL source on Denon remote (to watch broadcast).
Go into menu -> System Setup -> HDMI Setup
[c] Set Standby Source = Last (or HDMI1, HDMI2, HDMI3, HDMI4, HDMI5, HDMI6). "Last" will allow the last source used to be default active when AVR is in standby mode.
[d] Using Denon remote switch AVR to OFF/Standby mode, but allow TV to remain ON. Wait, after a few seconds (maybe 10 seconds), eventually the last device used (TV in this case) will re-activate, broadcast will return. TV can be operated independtly as desired now (HDMI signal is now being passed-thru the AVR).
To use Denon AVR (for home audio surround for example):
[e] Using Denon remote switch AVR to ON. Power-ON TV. Source should already be set for SAT/CBL. After a few seconds broadcast audio will output via-Denon, video signal (TV broadcast) will output on TV.
Works beautiful. Brand of TV should not matter as HDMI signal is present whether AVR is in ON or standby mode.