On the catalog page, you can have a Featured Category slider that will highlight a specific category. The Featured Category slider will show the featured category slider images for the first 12 videos of the category you select. When you add a Featured Category, the selected category will only be displayed on the slider. Since the slider is interactive and users can navigate through the slider, the category isn't added again on the rows below.
If you don't have 12 videos in this category, the featured category slider will show the featured category slider images for the videos currently in that selected category (up to 12). If you don't have featured category slider images set for your videos, visitors will see the first frame of the video.
To add a featured category:
Navigate to the Customization tab and click Customize. Scroll down to the Featured Category section and select which category you want to feature, then Save.