1. first you have to confirm that your computer and the TV have a HDMI interface. If you don't, you can have a DVI-HDMI transfer line.
2. connect the HDMI line to the HDMI interface between the computer and the TV.
3. there are two desktops in the desktop right - key attribute - display.
4. click on the 2 screen, and then click the bottom to expand the desktop to the screen, and your computer desktop extends to the TV.
5. then drag the window onto the TV.