Yes, virtually any flatscreen should be able to work as a computer monitor. You will need either one of two things. Does your computer have an HDMI output? You can use this to connect your computer to your TV. HDMI will carry both the picture and sound. If you don't have an HDMI, and your PC isn't too old, you may be able to add a video card with an HDMI port.
Or, if there is no HDMI on your computer, check to see it the TV has a VGA input port. This is a large, multi-pin plug, with a nut on either side, for the securing screws. However, VGA is just for the picture. For sound, look for an audio input. This could be a pair of standard RCA jacks, like the ones on the back of a stereo receiver. Or, there could be a 1/8" headphone-type jack, marked with something like "PC Audio".
Hope this was of help.