Your TV
Using the "My TV" widget, you can select one or more videos from those you've already published, so they can play in a loop on your Profile without having to pass through the area dedicated to videos.
This is recommended if you have videos you're especially proud of and want to display them instantly to people who visit your Profile. Also, "My TV" allows you to create playlists with a theme!
So if you haven't uploaded any videos, get to it!