UK TV with scart input only - got it working, here's how
In order to display the component signals via a scart you would need to have a very expensive type of tv (one that allows YUV via scart)... i don't (you may, but it is VERY rare).
Getting a component to scart lead will NOT work (RGB input not YpPpR).
You will need a component to scart convertor. I have only found 2 that do the job as most convert the wrong way i.e. scart to component.
the one I plumped for was the SYNCBLASTER RGB2C COMPONENT TO RGB TRANSCODER and can be bought from Keene Electronics : http://www.keene.co.uk/electronics/multi.php?mycode=RGB2C
It costs £89.99 but it is worth it!
You will also need a component lead (3 phono to 3 phono) (an adaptor is included with the transcoder that will allow you to plug it into the scart socket on the transcoder)
You will also need a FULLY wired scart lead (i.e. ensure it has rgb capability - most have)
You will also need to connect the audio up to an amplifier either via the two red/white connectors OR via the optical out to an appropriate input (I use the optical to my amplifier). You will NOT be able to transmit the audio via the scart.
Once plugged in, you need to set the switches on the front of the transcoder to :
1 down
2 up
3 down
4 up
Press in the button so the light shows amber(red)
apply power to the apple tv, it should now startup and you should see a picture (if no picture is seen, wait until the white light displays on the front of the apple tv and HOLD MENU and + for 6 seconds, it will now cycle through the resolutions... click ok when you can view it).
Works a treat, and is cheaper than buying a new HD TV!
TO be honest, don't believe the bad press, the apple tv IS as good as you hoped it would be even without a HDTV....
Shame that apple didn't offer an additional composite (yellow) output, this would have prevented so many problems for so many.
for all its worth, I hope this helps someone.
CD
imac g5 20" ppc 1.8, Mac OS X (10.4.9)