Originally Posted by Dingo76
Everyone seems to say that these TVs will not transmit 5.1 over HDMI through the TV to the tuner.
That's probably true, but there are two different model lines -- "87" and "89". I'm not sure that it's been established that neither of them can pass 5.1 from HDMI through the TV to the digital audio output on the TV. It will take a little more time to be sure.
So does that mean that the only way to use HDMI and get 5.1 is to go from the cable box to a tuner, with HDMI inputs, to the TV?
I'm assuming that by "tuner" you mean an A/V receiver.
If you have an A/V receiver with HDMI inputs you can go from the STB(TV tuner) for cable or satellite service to the A/V receiver using a HDMI cable if the STB has a HDMI output. If your STB has a DVI output then you can use a DVI to HDMI cable. (In your case that's what you will need.)
That gets the audio (5.1) audio signal and the video signal to the A/V receiver. To get the video signal to the TV you need a second HDMI cable to connect from the A/V receiver's output to the TV's input.
If you don't have an A/V receiver with HDMI ports you can still do the same thing. You connect the STB to your TV with either a HDMI cable (or DVI to HDMI cable) for video. The STB will also have a separate digital audio output (either optical or coax) that you can connect directly to the A/V receiver for 5.1 surround sound. This is the method that most people with surround sound use at the present time.
Is there a way to have HDMI go from the cable box to the TV and an optical output from the cable box go to a non-HDMI tuner without some kind of issue.
Yes. See above. The only issue is how you control what you are watching and hearing. You have to select the TV channel with your STB controller, and select the audio input you want with the A/V receiver remote. Or you can use a universal remote and teach it to it all with one button.
I do need a new tuner, but wanted to wait for HDMI 1.3 to come out for tuners and be a reasonable price.
Using "A/V receiver" instead of "tuner" will be understood by many more people hear at AVS. An A/V receiver may have a AM/FM radio tuner in it, but most people don't refer to is as a tuner. On the other hand, it's common to use "tuner" for STBs or DVRs.
If I am forced to use component to get 5.1 through my tuner
Component connections are for video only so you are force to use the separate digital output on your STB if you want 5.1 surround sound. It's best to connect component directly to the TV and not go through the A/V receiver using component. Any extra component connections can degrade it's analog signal.
By the way I have a COX HD DVI tuner.
Your Cox STB can be connected to your TV with either a DVI to HDMI cable or a component three cable set. In either case, you would use the digital audio cable (optical or coax) that fits the digital audio output of your Cox STB. If you also want audio to the TV then you can use the separate RCA stereo connection on your STB. One of the HDMI inputs on your TV is also paired with two RCA jacks for stereo audio. If you want audio to the TV with a component connection you have to use the RCA jacks associated with the component input that you are using. Some people always use their A/V receiver for TV audio and never make those stereo (RCA) connections.
You may have more questions.