Someone please help me understand ARC
Currently, all my sources are connected via HDMI to my AVR-S640H. Another HDMI cable goes from the Denon to my ARC capable TV, Vizio E-70-C3. I mostly watch my cable TV source and use the TV speakers to listen, without turning the Denon on. When i use the DVD player or watch a movie through Apple TV, I turn the Denon on for surround sound. When I watch other cable TV content (think HBO Game of Thrones), I turn the Denon on for surround sound.
When I'm using the TV without the Denon, I use my TV remote to control the TV. When I want surround, I use the TV remote to control the TV and use the Denon remote to control the sound.
I don't want to power up the Denon to watch simple cable TV.
I don't mind the above set-up. Using the 2 remotes is not a hassle.
1. Is the ARC function something I'm already using but don't know it?
2. If I'm not, would using ARC benefit me?
3. If it would, how would it?
4. Would it require changing any of my current preferences? (like not having to have the Denon on for simple cable TV watching).
Sorry, a few more questions
If I connect my sources to the TV instead of the Denon (perhaps a better picture since it omits another set of circuits), would I need to set up ARC or could I use an optical cable from the TV to the Denon to get surround? Would the surround source material pass through the TV through the optical cable, or through ARC for that matter?
Again, my goal is to not have the Denon on to watch simple cable TV shows using the TV speakers, nor have to turn the Denon on to switch sources. (I have a Hi-Res audio player that obviously won't be connected to the TV). I currently can switch sources without turning the Denon on.
Thanks to anyone brave enough to tackle this!