Joris_FRST At the end of the day, it's up to your eyes to decide which item does the conversion, your telly may have a better conversion circuit than a £50 DVD player, but not necessarily better than a £1000 player.

Thrush A video picture is made of many signals, component has all these mixed together on two wires and have to be separated again in the television. This process of joining them then splitting them reduces ultimate quality.
S-Video is slightly better as it carries the signal over four wires (I think), so not quite so much mixing/demixing.
Component/RGB carries the signal over 6 wires, so that's better still. In broadcast (e.g. BBC), they use ten wires to keep everything separate

Worst of all is the arial cable that comes from the top of your roof, that has to carry video+audio at the same time, plus no home grade equipment can encode stereo over an RF (aerial) connection so at best you would get mono if you used that.

Now, with digital it's a completely different world, we've had coax/optical digital connections for a while, it is now possible to interconnect equipment such as DVD players and projectors/plasma using digital signals, but it is very much early days and only very expensive stuff caters for that.

Look here for a better explanation http://www.michaeldvd.com.au/Article...Connectors.asp phew.

Hope this helps.