I just wrapped up a website that is my best design to date. Everything looked fine, we went live. And then all of the Youtube videos broke from their 16×9 ratio that they were on the development site to being these tall/skinny rectangular boxes.
Having a cohesive brand image is essential in this day and time. Everyone and their brother has a small business, clothing line or record label. If you want to survive, you need to stand out. The best way to do that is to create a strong brand identity that expands to every aspect of your business.