As a beginner, I'm going to build a good-looking video streaming website, but want the easiest way to build. I'm looking for a user-friendly CMS to create the main structure of my site. Please have a look at: http://www.threehosts.com/ratings/comparison-software/wordpress-vs-joomla-vs-drupal.html. As you can see they have provided a collection of websites created with WP, Drupal and Joomla. How can I understand if these websites are really built with the mentioned software? And how can I know if they have used any template for their sites or they have only used the mentioned CMS? Because some of these websites look really great and professional! I want to know this because I'm on a tight budget and don't want to pay for any template or theme.