There are two different sources in play here, if I'm reading this correctly.
One is the TV, and the other is the PC.
The PC is hooked up to the video of the television, but not the audio, so it would appear that you're actually needing two inputs for your speakers.
I have Creative Labs Gigaworks T20 speakers and would like to use them in the TV mode and if possible when in the PC mode. Currently the the Red/White audio cables are running from the Samsung back panel to my cable box. The T20 speakers have a Red/White adaptor which plugs into their Audio Input. I don't seem to find an Audio out on the Samsung. Can the two be connected to at least use the speakers when in the TV mode? I am a total novice so please keep it simple.
Thanks in advance for anybody who has any suggestions.