But it is just another landmark in video production development that shows the changing times in film and television. This international standard format of HDTV has become so commonplace we forget it is there. Now that you fully understand the 16:9 aspect ratio, you finally know why your high-definition television looks the way it does. So if you're trying to watch a movie that's natively in 2.39:1, you're going to get the black bars. That way you'll know how your work is presented on the screen. If you're creating content for Netflix, Amazon, or HBO, you should know their aspect ratios. The TV broadcasting companies are now all using 16:9 aspect ratio for their high definition video. While this practice is supposed to stop, with letterboxes being added to share the proper format, you should still be aware.
So here's the deal-lately, some streaming services have been cutting off almost 25% of movies by reformatting them to fit 16:9 televisions.
