http://www.theverge.com/2015/9/3/9254363/on-demand-mobile-viewing-tv-movies-ericsson-report
I'd been thinking about this lately, but it goes further than tv viewing. What I'm seeing happening in our household is "device normalization" --where data/media access is being funneled to fewer and fewer devices. The phablets are a big part of this, I think.