Hi. I have an Olevia 537-b11. I do not have cable. A few months ago I was able to auto channel search and get a couple of basic channels. I can no longer auto channel search on cable or air. I have the tv connected to the old cable wire that we had when we paid for cable. Did the cable company do something so it no longer works? Should I buy an antenna? Or is there something wrong with the tv. I noticed that in the auto channel search options under the cable search, the options are now standard, hrc, irc, and auto where as before it only had standard and auto. None of these options work. I don't know how the tv would have updated itself though. When I choose Air under auto channel search, it does not work either. Looking forward to your advise. Thanks.