Currently Being ModeratedJun 23, 2013 11:53 PM (in response to Mapguy54)
iMovie is an editor, no 'player'.
looping a video is a players feature:
so, either your TV player has a sort of 'switch'.
(read the Manual)
or, you have to copy/paste your timeline again and again and ... to create an hour-long version - which is no loop, after then, it will stop again.