Watching cable television on your computer has been easier with the creation of dvb-c PC TV tuners and television software. You connect the TV tuner device either internally or externally on your computer system. These cable TV tuners or “TV cards” work the same way that a standard TV antenna does. The equipment receives broadcast TV signals that your computer reads to create live television output. Installing a PC TV tuner card or external TV tuner to your computer using a USB connection requires a few simple steps.