xenokyriazis,
I would run the game console's video directly to the TV via HDMI, and then run the audio via optical from the game console directly to the soundbar for best results.
Does that help?
--HDTech
What would be the best way to connect a Sony Play Station 3 to the Samsung HT-X810 soundbar, in order to use it as a blue ray player? (Tv: Samsung UE46B8000)