You want to publish videos on {{ instanceName() }}? Then you need to create your first channel.
You might want to create a channel by theme: for example, you can create a channel named "SweetMelodies" to publish your piano concerts and another one "Ecology" in which you publish your videos talking about ecology.
{{ instanceName() }} administrators allow you to publish up to {{ videoQuota() | bytes: 0 }} of videos on their website.