The Fairness Doctrine was done away with BY the FCC after Justices Bork & Scalia ruled (Appeals Court for DC) that the FCC was not required to implement the fairness doctrine, citing 1st-Amendment considerations that (from my preliminary study) turned the meaning and purpose of the FD inside-out.
Not coincidentally, the actions that brought down the FD arose in the aftermath of the Iran-Contra scandal & IIRC pre-dated the rise of "conservative" talk-radio. Personally, I think there are questions there that need answering; if I can't find answers, I'll see what facts I can find, and then see if I can build an argument.
Or, perhaps I'll find out what I want to know. In that case, I'll act on what I know.