We are hooked up to the Dish Network using one receiver with a splitter that allows it to be used with two TV's. Recently we have been having an issue that only one TV at a time will pick up the signal. The other cannot pick up a signal. This alternates between the two TV's. You can be watching one TV at night before bed and then get up the next morning and that TV is no longer working but the other one is. Does anyone have any idea what could be causing this? One Dish Network technician told me it was the LNB. Another said it wasn't the LNB but one of the cables connected to the splitter. I'm wondering if it isn't in the splitter itself. Any ideas?