Connecting soundbar to TV

[Coopazoid]

I have a LG 42CS460 HDTV that has no optical output and only one HDMI port. I recently bought a LG NB2530A soundbar which only has Optical and Port inputs. How do I connect the two? I really don't want/can't afford to buy anew TV.
Thanks for any help in advance.

 

[hang-the-9]

What audio output does the TV have? Can't really find out from a web search, not a ton of info about that TV available.