Unfortunately you won't be able to get true surround out to your HTS. Your TV has an ptical out but your HTS doesn't have an optical input and can only accept a R/L RCA input meaning you will be able to get the headphone output to be a RCA output(R/L) but it's only RIght and Left channels. I'd suggest you look at a HTS that has Optical TOSLINK input to pair with the TOSLINK output on your TV.
Unfortunately you won't be able to get true surround out to your HTS. Your TV has an ptical out but your HTS doesn't have an optical input and can only accept a R/L RCA input meaning you will be able to get the headphone output to be a RCA output(R/L) but it's only RIght and Left channels. I'd suggest you look at a HTS that has Optical TOSLINK input to pair with the TOSLINK output on your TV.