* TODO: filter, limit, ordering parameters
* @return array a list of videos, each one being an assoc array with:
* * id, name, title, duration, thumbs_count, default_thumb, views => from DB
* TODO: filter, limit, ordering parameters
* @return array a list of videos, each one being an assoc array with:
* * id, name, title, duration, thumbs_count, default_thumb, views => from DB