I want to mirror my primary screen on TV

[tap1or]

Hello everyone
My graphics card is NVIDIA GeForce 9800GT and as the title says I want to mirror my primary screen on a HDTV.
My graphics card has only two DVI-I outputs. I have already tried a spliter witch did not work, can somone help me?

Thanks

 

[tap1or]

I'm sorry I didn't metion that i have second monitor conected aswell 😛