I'm considering buying the TH-42PWD8UK. I have digital cable through Comcast so, no tuner, no problem. However, I don't have a home stereo system. I do have Harman/Kardon speakers with woofer that I used to use on my PC. These have a USB connection to the PC. Is it possible to connect these to the TH-42PWD8UK? If so, is a converter needed? I'd really appreciate any help and I hope I don't sound too stupid for a newbie!Thanks.

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