Hi guys First let me tell about my setup

- LCD TV
- HTPC
- 5.1 speaker ( Hong Kong Brand ) Have only 1x 5.1 input and 1x 2.1 input
- PS3

Now i have connect my HTPC to the 5.1 to 5.1 to watch Bluray movie, but now planin to set ps3 to share 5.1 sound but from ps3 it have optical output

so is there any way i can share htpc and ps3 to the 5.1 maybe by any switch or something?