Liam has a brand-new iMac, and a 42″ television sitting around. He’s wondering if he can connect the television to the iMac to increase his workspace. As far as I know, the new iMacs will indeed do this. As long as the iMac is a newer one and has the video out to video in connections on it, this will work in theory. Also, the television should be at least 1080p. If it’s not, you won’t be able to push many pixels down the pipe.
However, a second screen IS a second screen, any way you look at it. The quality may not be the best, but you’ll have more screen real-estate.