Connecting ASUS G75 to a HDTV as a dual monitor possible?

I was curious instead of buying another monitor for dual screen and multi-tasking, is it possible to use a HDTV with HDMI ports for dual screening?

For example have e-mails open on one screen and a show playing, while I'm typing up an essay on my laptop screen.

Not sure if this is possible or is the only choice I have is to buy a monitor?

Any help would be nice thanks!

Connecting ASUS G75 to a HDTV as a dual monitor possible?