Hmm...well...I've had a chance to look into your receiver more closely and my concerns were confirmed. Option 1 that I posted above is not possible with your receiver. This is just a smaller home-theater-in-a-box system, but I was hoping that it would have more than just two inputs...
Also, I have only found very limited information on your television and whether or not it will do a proper audio pass-through to the optical out. I cannot verify whether or not it will do an A/D conversion on the analog inputs. I doubt it though. Also, I am certain your TV will only pass a down-mixed stereo audio stream from the HDMI inputs (if they carried AC3 in the first place). This causes some problems.
Here is what I can suggest with the limited options you have available to you with this setup:
Video
- Connect the Component output of your XBox 360 to the Component input #1 on your TV.
- Connect the Component output of your Wii to the Component input #3 on your TV.
- Connect the HDMI output from the Cable Tuner to the HDMI input #4 on your TV.
- Connect the HDMI output from your Apple TV to the HDMI input #5 on your TV.
Audio - This is where things get inconvenient.
- Connect the analog L/R RCA cables from the Wii to the AV IN AUDIO (L/R) jacks on the Receiver. You can set your Receiver to Dolby Prologic II decoding for this input to hear surround audio from the Wii.
That's the simple part. Now for the problem...
- For surround audio on the XBox 360, Apple TV, Cable tuner and TV tuner, you will have to share the single optical in on your receiver. Yes, this means swapping it out for the device you want to hear at a give time. You can use the optical outs on all those devices, but only one can be connected to the receiver at a time. You can use just one optical cable attached to your receiver all the time and then connect it to the component you want to use.
IF - and it's a big one here - IF your television will pass bitstream digital audio (AC3/DTS) from the HDMI inputs to the optical out, then you are fine for surround on the Apple TV and Cable tuner. You will still need to swap the optical cable between your XBox 360 and the TV.
- For stereo audio, connect the XBox 360's analog L/R outputs to the L/R inputs #1 on the TV. The Apple TV and Cable tuner are set with their HDMI outputs. This is all hoping that the TV will pass a stereo signal from the HDMI and analog inputs to the optical out.
That is what I can offer you. As inconvenient at it is, I would recommend going with the optical swapping for surround sound from your devices. Give the audio pass-through a shot on your TV though. If that works, then it will eliminate the need for two of the cable swaps.
If you are looking at getting a new receiver in the near future, I can give you some great recommendations that will allow you to have ONE HDMI output from the Receiver to the TV and do all your switching from the Receiver with all components connected for surround.
Please let me know if you have any questions.