I guess I just don't see it. Sure they overhype the SEC at the moment, but that's because the SEC has really, on average, fielded better teams than other conferences, on average in recent years. Sports journalists are creatures of habit and tend to stick with their preconceptions.
I also think its a little funny for buckeyes fans to chaff at that when you consider the fact that OSU seems to be always overrated by the polls and the sports media at the beginning of every season, largely due to the influence of the program's historical dominance. Ditto for Michigan this year. All we heard all spring and summer was that UM was "back." I think we all know how that has turned out. When it comes to ESPN and OSU, I think that, if anything, they show a noticeable bias in favor of Ohio State. I also think they tend to devote an inordinate amount of time to covering the program year in and year out because they know that the Buckeyes have one of the largest, if not the largest college football fan base in the country.
I dunno, like I said, maybe I just don't see it. But one thing I do know is that every fan base of every team out there thinks that the media is biased against their team.