How to make youtube video fill full screen
2015-01-13azim58 - How to make youtube video fill full screen
12-4-11 One tag that seemed to work for me was
yt:crop=16:9
This tag is added to the tags next to where the uploader edits the video
description.
Here's a link about editing tags for the video format.
http://www.google.com/support/youtube/bin/answer.py?hl=en&answer=146402