No Cable Detected?

Question

I have had my Olevia for almost a year and use it sparingly. It has always worked good unil last week. I turned it on and the screen said no input detected. I deceided to "re-start" the set as if I just bought it. Now I geta message that no channels are selected. I went to the menu to program in the channels and got a message that I could not auto program the st. I went to the manual program and the set could not find any channels.

Any help would be greatly appreciated