How to hook up my surround sound

[mark83087]

This is my tv: http://reviews.cnet.com/projection-tvs/mitsubishi-wd-73c10/4507-6484_7-34122980.html

My problem is, I have a sound bar system here is the type : http://shopper.cnet.com/surround-speaker-systems/sharp-ht-sl75/4014-7868_9-35112653.html#info-5

now i have my ps3 that I watch blu-rays on but i want the surround sound to work for it. What i did get to work was hooking the sound bar system to my receiver box for the speakers to work when I watch cable. but when I want to watch a Blue ray i cant get it to work. I know its because my tv does not have audio output. but is there some type of convertor I can get or something out there that you guys I know are smarter at than I am. I just want my PS3 to work with the tv speakers and my surround sound like it does when I watch cable. Any suggestions?

[tinker]

It is not very clear how you hooked up your sound bar system to a TV, or is a "receiver" you mentioned, separate box?
From spects for TV, it should have 3 HDMI inputs.
If your PS3 is hocked up to one of them and you switch to that port on TV when watching blue-ray you should be getting sound from blue- ray though TV speakers. So if TV is sounding through your sound bar so should blue-ray.