I recently purchased a new Panasonic TC-P42X1 and there is no option on the back for external audio out EXCEPT for an optical digital audio out. I have powered computer speakers and would like to hook these up to this TV however, the plug on the speakers is a normal stereo jack. I have no DVD player hooked to this TV or receiver, only my direct TV HD box. Is there an adapter I can buy to go from stereo to optical digital? Is there another way to hook it up to the satellite box to control the speakers through the TV? I do realize it would be much easier to hook up a DVD or receiver but my space is limited and I will be using a PC for DVD purposes later. Any help would be appreciated!