How to connect my asus netbook to my tv using HDMI?

[Larifel]

I've tried plugging in my asus netbook using HDMI to my tv..but then it didn't work. Unlike my friend's laptop that it connected and displayed on the tv screen automatically.

 

[Suztera]

Make sure the tv is set to display the correct input and the netbook is configured to duplicate its screen to the tv.