Well your mobo uses the ATI HD3200 chip so you would need to configure the ATI Catalyst driver software to use two screens.
You have two options on using multi screens.
1) All screens showing the same desktop. All screens must use the same resolution and refresh rate. This would be the highest resolution on the lowest specced screen. This I guess would be one of the TVs.
2) Extend the desktop across all screens. Each screen can run a different resolution.
Be aware that on the HDMI output even though you have two TVs attached you can only have one resolution that will be applied on both screens.