Thanks for the answers. My tv is this: http://www.toshiba.co.uk/discontinued-products/40l5453db-40-smart-3d-led-tv/ .
And this is the decoder I wanted to connect to it...
Hi. I have a Toshiba TV which has a coax out. Can I get 5.1 sound from the TV if I use a DTS decoder? And also if I connect my laptop through HDMI to the tv, will it be able to feed 5.1 trough the tv?