Cable TV Card
Digital Cable Card (DVB-C) allows you watch cable TV on your PC. In many countries you are given the choice of free-to-air cable TV. It offers an alternative to digital terestial TV via arial.
There are many commercial and free DVB software that allows you to watch, record, or use your PC as a PVR. Please note cable tv cards can only be used in countries where you can attach you own equipment. So if you live in UK attaching your own card may not be legal. Technisat is a popular supplier of cable tv cards.
Recommended Cable TV Card:
Ceton InfiniTV 4 PCIe - 4-channel Internal Cable TV Tuner Card for CableCARD