We have a 15in HD ready LCD TV model LT1511WCW.(Bush) we have lost the tuning unstrutionsand cannot tune it in using the remote. When we first had it we did have the freeview facility but now we cant get it, could we be pressing a wrong button? We are using a freeview box at the moment but obviously would like to use it on its own. Please could you help with our problem. Thankyou.