Hi Kasper,
It all depends on what TV you have or what Graphics card you have.
Most LCD and Plasma TV's now come with a VGA connector so that you can plug your TV directly into your graphics card.
A lot of graphics cards, such as NVidia also come with an S-Video connection, which, with the right cable allows you to connect to your TV's scart socket, and even use it as a second screen whilst your working on your PC.
You can also buy VGA to SCART converters quite cheaply, but a lot of people have problems with these, since you will end up spending a lot of time syncing your PC to your TV and setting the correct resolutions each time you want to watch a video.
