I have the Elsa Gladiac Geforce2 GTS with the optional video in/out module. I have not been happy with the TV output and would <b>NOT</b> recommend it.
If you really care about TV output, ATI is the best. Consider the Radeon. My ATI Rage Fury has much better TV out than the Elsa. I don't know about the Asus cards but Tom raved about the V7700 Delux but did say the Radeon was better. Check out his review.
I just got the Asus V7700 deluxe GF2 with video in/out. I love it so far. It was awesome especially for the price. I found it for $223 on pricewatch. not bad for the GTS with video in/out.