It works after installing ATI's propietary drivers for Linux. TV out untested.

glxgears outcome:
4070 frames in 5.0 seconds = 814.000 FPS
4918 frames in 5.0 seconds = 983.600 FPS
4914 frames in 5.0 seconds = 982.800 FPS
4915 frames in 5.0 seconds = 983.000 FPS
4918 frames in 5.0 seconds = 983.600 FPS
4918 frames in 5.0 seconds = 983.600 FPS

Mainboard: MSI K7T266 Pro2 ATX (KT266A chipset) + AMD Athlon XP 1700 + 512 Mb DDR RAM.

Yes, although with your hardware you should get much better then that. This is my output:

7992 frames in 5.0 seconds = 1598.400 FPS
9295 frames in 5.0 seconds = 1859.000 FPS
9433 frames in 5.0 seconds = 1886.600 FPS
9297 frames in 5.0 seconds = 1859.400 FPS
9360 frames in 5.0 seconds = 1872.000 FPS

I'm running a Tekram P6B40D with a (single) 1.4GHz Celeron (Tualatin) on a slotket, with 512mb of Corsair CAS 2 PC133 memory. TV Out works like a charm; just set the drivers to clone and you're all set.

2D and 3D acceleration are supported under xorg 6.8.2 for the Radeon 9200. You don't need the proprietary ATI drivers, although they are faster.

Incidentally, the 9200 appears to be the latest model from ATI which is completely supported by open source drivers. Later cards (based on the r300, like the Radeon 9600 for example) are only supported by the proprietary drivers.

more information:
http://www.gentoo.org/doc/en/ati-faq.xml