For general media, Netflix/Amazon? iTunes? ThePirateBay? PornHub? The number of organizations generating and/or delivering content so vast and diverse that I cannot understand how any small group could get their hands around most of anything. I watched a Doctor Who episode today (horrible, bad effects, bad acting). Which of the six owns the BBC?
Most of the content on any of these is produced by companies on the OP's list.
> PornHub
I mean, it's likely that in general this kind of estimate is ignoring things that are not considered savory so porn is gonna be underrepresented for sure. It's probably not going to move the needle as much as you think though.
> BBC
A lot of BBC's content is produced outside this set of companies, but it's likely that some of it is at least co-produced with companies on the list, usually for the sake of international distribution. This probably counts as some degree of 'control', which doesn't necessarily imply direct ownership.
Outside of the BBC, on the private British networks (and in general wrt any regional media production) this kind of co-production arrangement is really common.
