[galdosdi]

Glad you brought that up, since the concentration of ownership of stations is an entirely separate, but even more serious source of bias. Station ownership is way less obvious to consumers than network affiliation.

For example, Sinclair also owns some NBC, ABC, CBS, CW, and Univision stations (a fact I only just looked up myself). I am sure many consumers (like the parent) assume all Fox stations are owned or managed by Fox, NBC stations by NBC, and so on, when it's much more complicated for historical reasons, which is what I want to draw attention to.