How do to connect a pair of computer speakers with a subwoofer to a panasonic vi

[mnknow]

What do I need to connect Logitech computer speaker with a subwoofer to a 42 " Panasonic Viera HD TV?

 

[batuchka]

Look for the analog audio out at the back of the TV? Check your manual - should be red/white RCA me thinks so you'd need a RCA-to-3.5mm female cable. Alternatively if your TV has headphone out try that

 

[americanaudiophile]

Most TVs have only an optical digital audio output so if your speakers don't have this connection you will need to convert the optical digital to analog L/R audio with a converter like this:
http://www.amazon.com/Orei-DA34-Digital-5-1-Channel-Headphone/dp/B008EPW7O0
You will have to adjust the volume on the speakers however since the TV output is usually fixed in level.