Well, this stupid board killed my long reply, so here's the quicky...This is in regards to my ATI all-in-wonder pro 128.
1)TV out is not on all the time. No DOS driver either. If I hit the reset switch while in Windows, it'll boot-up with TV out ON, giving me DOS (minus controls and functions for fine tuning though).
2)Bleeding is NOT a problem. Windows is quite blurry, but games look FANTASTIC on the TV. Much better than on the monitor, in my opinion (and friends I've asked).
3)Board members seem to mostly agree that ATI TV output can't be beat. I've only tried one other and it sucked BIG TIME (an old Viper card). Also, I get to use the monitor and TV out at the same time. Lots of cards are one or the other. Having both helped a lot during the build phase.
Hope this helps.
TapeWurm