You miss the obvious. The entire network news programs am, pm, weekends, magazines, are must runs. I worked at 3 networks. Our newscasts often had much political commentary (which stations must run). Sometimes conflicts of interest of our paid commentatorswere not disclosed.https://twitter.com/10sYellowFuzLuv/status/945524791745961984 …
There is far more one-sided editorial info put out daily by the nets than anything Sinclair requires of its locals. And, BTW, the nets are seen on Sinclair stations. So on any Sinclair station u get *way* more network must run material than Sinclair material.