HD 101: Why there are black bars on HDTVs
by Ben Drawbaugh 
posted Feb 19th 2009 at 11:00AM 
It never fails, one of the first thing just about every new HDTV owners asks is; why are there black bars on my new widescreen TV? And this is the reason why just about every HD discussion forum has a sticked thread at the top of the forums explaining why this still happens. So in this edition of HD 101, we figured we'd have our go at trying to give a simple answer to an age old question. The most basic explanation is because the image you want to watch isn't the same shape as the your TV. Of course that seems too obvious and now you're thinking; but why not, they're both widescreen? But rather than getting into the why are there so many shapes -- called aspect ratios from here on out -- we'll show you the various formats and the different ways they might be displayed on your HDTV.
