You first need to ensure if you have any SBS digital signals in your area. I take it that you are in Australia. Go to this website for more info. If this is not what you are looking for let me know.
If you have received SBS signals before and now you aren't there may be a setting on your tv that changed the component input from SBS to something else. Check to make sure the component inputs that the signal is coming in on is selected on the tv. I sure hope this helps you. If not, give me a little more info and maybe I can help a little more.
Answers & Comments
You first need to ensure if you have any SBS digital signals in your area. I take it that you are in Australia. Go to this website for more info. If this is not what you are looking for let me know.
http://www20.sbs.com.au/transmissions/
http://www20.sbs.com.au/transmissions/index.php?pid=1
If you have received SBS signals before and now you aren't there may be a setting on your tv that changed the component input from SBS to something else. Check to make sure the component inputs that the signal is coming in on is selected on the tv. I sure hope this helps you. If not, give me a little more info and maybe I can help a little more.