I think the first place to start is to figure out exactly what hardware you do have to see if it is workable for what you are ultimately trying to achieve.
I'd like you to provide the following information if at all possible with as much detail as possible (e.g. when I say TV model, LG isn't enough info, I need the exact model of the TV):
PC Make/Model (if custom built, I'll need to ask a few questions about specs)
Any sort of Home Theater Receiver for Audio? If so, Make/Model.
Any additional devices (i.e. PS3, Xbox 360)?
All of this will help give us an idea of what you can do right now vs what you might need to upgrade to do.
Last, but not least, welcome to the forum. I'm fairly new here myself, so that feels weird to say, but true nonetheless
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