Open ups sax2 or yast over to Monitor & Graphics Card under hardware or something like that. Then add another graphics card. Make it identical to the one you have installed already. As you add the card, scoot on over to the "Expert" tab and change your "BusID" to "1:0.0" and change the "ScreenID" to "Secondary Screen ". Then go to the monitor section and configure it. Depending on your TV I'm sure, you can set it usually to a maximum of 1024x760@60Hz. Make it Vesa with that setting and keep the frequencies assigned (Something in the range of VSync 30-50 & HSync 50-60. When finished that, scoot on over to the Multi-Head section and configure the display settings (Traditional, Cloned, Xinemera).
I hope that's the answer you were looking for.