Can't get audio to TV from HDMI (not a repost, help!)

Ok, I recently had to reformat my SSD which is only 64 gigs and I mainly just use for Windows. I have dual AMD 5870's and prior to the reformat, I was able to dual screen with my monitor and TV and had no issues whatsoever. Now, when I try to connect to the TV (through either video card) I have video and no audio. I know what you're saying. We've fixed this a million times. But here's the thing, none of those solutions has worked for me. I don't know what to do and am hoping someone has some insight beyond "rightclick and select show disabled/disconnected devices". Because I have done that. And it's still not showing up as an option, not as disconnected, not as disabled, no HDMI options at all. Using Win7 and a Panasonic TV if that helps. I've tried to find new devices, I've uninstalled and reinstalled (repeatedly) the realtek drivers, including the supposed HDMI specific one (when I install it tells me no drivers were useable), and have tried d/ling the Catalyst HDMI specific driver, and when I install that nothing happens at all. I'm seriously at my wit's end with this, can anyone help me?