I have a Philips 27" TV at work. Model #PC7227 C111, Chassis #27B800-7562. The original user of the TV had it programmed to only work on a couple of channels, CNN and The Weather Channel. We are being allowed to use the TV any way we want and we're trying to figure out how to set up the TV so that all channels will work. Does anyone know how to go about this?

Another thing, I noticed on the back of this TV that there is a 8 switch dip switch. Does this dip switch have anything to do with my problem? And if it does, does anyone know the proper settings of this dip switch to get all channels on the TV? I would appreciate some help. Thanks.

By the way, the TV is a 1999 Model.