http://www.testequipmentdepot.com/tvone/converter-box/1t-ap-216.htmhttp://www.testequipmentdepot.com/tvone/converter-box/1t-ap-216.htmI have been working on this same issue myself and found it very difficult to resolve. The manufactureres of TVs are not necessarraly hooked up with the manufacturers of PCs, therefore the support is slim at best. many modern video cards have a HDMI output wich is capable of video and sound, however getting that sound out via HDMI is the issue.
I have seen several possible solutions
1) Somewhere and I can not remember where I saw a DVI HDMI cable wich included a DVI connector with Sound cable which terminated into HDMI, I could not find this cable later when I realy considered purchasing it.
2) My Video card has a SPDIF connector on the card (small white two prong connector), My issue is there is no digital output from my sound on my mainboard, further my video card covers over the only PCI slot I have on the mainboard. callenges.... Callenges .... Now what?
Well you can send video out from your sound card and capture that video out in an analog to digital converter such as the one made by TV one. Then you have to obtain an RCA (Coax) to two prong SPDIF connctor for your video card. These are difficult to find MSI offeres them for their video cards. With enough parts from Radio shack, you can make your own.
3) If you have a SPDIF output on your sound card or on you main board, then the problem is easier. You can obtain the proper cable on Amazon to attach to your sound SPDIF and the other end is made to connect to your main board.
The volume of complaints concerning this issue is staggering. One would think that the video card manufacturers would be wise enought to know that supplying an HDMI terminal was always going to require some abiltiy for the tech to attach sound. I know this is not the response many of you expected, however for right now cobbling this sound thing together is the only option available.