Yep, in fact there are some Chromebook owners on the forum who are already connecting their Chromebooks to their televisions. They are lurking around here someone, but I am sure they will tell you how they do it when they see this.
Update - today I plugged mine into a rather lovely Acer projector, and was flabbergasted to see it project at 1600*1200 resolution. It seems the CB will provide an output at the maximum resolution supported by whatever you connect to it. Dual screen output doesn't work though - the CB's screen goes blank when you connect the external display. I guess this is reasonable with the difference in resolutions.