How to connect 2.1 speakers with my LED TV?

[tarunbeck]

I have a LG LED Tv Model number (42LS5700-TB). How can I connect my 2.1 stereo speakers with that?

For further reference about my speakers Model number(Tricom T-3200) they have 1 woofer and 2 Left and Right speakers connected with the woofer and to connect my TV with that I just have a 3.5mm wire coming from my woofer.
I tried connecting that 3.5mm wire with the TV but nothing happened.

Please guide me step by step process for same.

 

[Lutfij]

Your TV only has one audio output port and that is an TOSLINK Optical output. You can't work with your 2:1 speaker system unless you look at this. The reason why it didn't work for the way you've connected it is due to the fact that the port you plugged into on the TV side, was for audio input, not output.

 

[tarunbeck]

So that Neoteck device you've recommended to me. Will it definitely work? Like my all 3 components the woofer and 2 speakers will start working with the TV?
Should i purchase it?