I have heard that Sierra World Equity Review is pretty much a junk site ... I don't have any DD to either support that claim or refute it, but I've yet to hear anyone say anything good about them, fwiw.
I call this "Rumor DD" - where you take a rumor and see how they got to it and if it makes sense or not.....
Before I begin, this is obviously pure speculation on their part and my part. However, with a little digging, we can see how they've come to this "prediction". This is purely my opinion based on information researched in public forums and piecing things together --- not assuming or trying to imply nor convey it is true.
So since Comcast owns Time Warner and in essence NBC Universal - and some of those listed above are possibly tied into NBC or have connections with them.....thus the rumor on the Time Warner inference, IMO.
Just thoughts on "rumor DD".......not saying any of this is true but provides an angle on how they probably made that assumption (but didn't break it down like this).