Originally Posted by darklordjames
"My HDMI Auto Switcher would work perfectly if I could just get the Wii plugged into it through one of the two options above."
An auto-sensing switcher still won't work for the simple fact that you have an AppleTV and an always on HTPC. The switch doesn't know which one of those to default to, and doesn't know which one to switch to when you want to use it. As far as the switch is concerned, the ATV and HTPC always spit out HDMI, therefore one gets selected as the default fall-back when everything else is turned off.
Your goal is transparent inputs. A Harmony solves that problem, possibly combined with an IR HDMI switch if you need more inputs than your TV handles. You set the Harmony so that when you hit "Play ATV" is automatically turns on the TV, sets the right input on the TV, and right input on the switch. Hit "Play Wii" and it takes care of TV power, switching to the component input of the TV, and ignores the HDMI switch. You already need a remote in hand to power up the TV and control volume. Just get a capable Harmony remote that also takes care of input switching for you as well.
The end quality of component straight in to display is better than converted HDMI on a cheap dongle, and a Harmony will give you a better end result than an auto-sensing HDMI switch will. Win and win.
I'm going to end up getting rid of the Apple TV so that one is kind of a non-issue. In the meantime, I'll just end up putting it in "HDMI 2", putting the switcher on HDMI 1 and attaching the HTPC to Priority 3, and then the Wii/PS3 on the other priorities.
I don't plan on getting a Harmony, or anything else that is more complex than this: amazon.com/gp/product/B003KZOAPI
(though to be honest, I would love if that universal remote could be programmed to switch inputs as I switch sources, but seeing as I will be getting rid of the ATV, it hardly seems necessary seeing as only the HTCP will have an IR receiver anyway -and the TV-). Up, down, right, left, select, back, and volume are the only buttons I want on a controller.
So basically, the switcher plan would work, I'm just worried about the quality of the Wii input I'd be receiving. It doesn't have to be perfect, I just want the volume situation easily rectified by, say, turning the volume up/down. If that's the only problem, it's not much of a problem. But if the volume becomes distorted because of the conversation, I'll have to find another way. (or use the $40 converter I posted above). Hmm. Or I suppose I could get a surround sound system/box + switcher combo (if that exists) and then the volume setting would be adjusted automatically via that box (if volume settings could be set per input).
Thanks for the insightful suggestions though, still trying to create my perfect media center.
Oh, and as for the Wii U, I don't plan on waiting for that. I never buy systems when they first come out. Though, I am really excited for it. The Wii is my favorite current console, so the Wii U with some HD action will be amazing.