outputting video to tv etc

I have the new version a (3.0) with vid plug in included and - without the essential manual which is sadly missing - I cannot figure out how to output video to my tv (I do not have a projector, I presume this does not make a difference), the only way seems to be to hit the tv icon on the menu bar which brings up vid full screen on the tv but the mixing window disappears altogether. I have watched the demo which shows a jock djing with full video going on so I assume it can be done. Can anyone advise please ???