Well, if you're lucky enough to generate decent viewing figures, they should go like this:
20 mins viewing time
Equals 21m viewing sessions.
Dan Rayburn, someone who I admire tremendously, thinks this is par for the course. Personally, I believe only fifty or so media owners globally are delivering this (with the YouTube at the top of the list and the BBC just behind...). The CDN marekt is made up of small players. It has the biggest head and thinest tail of any industry I've encountered...