The issue that many people don't see is Fox / ESPN/ ABC NEED to have the midwest markets strong, so of course they are going to play up the big ten's best teams, although they don't match up nationally. The one thing that hurts the SEC is many of the schools are in small markets. There are so many big ten alums in NYC/ Chicago, obviously adding Penn State was a boon to the league for adding the Nittany Lion nation.
The "old" big ten was the big 8 little two (OSU/ Mich) and that's really not changed dramatically other than adding Penn State. Meanwhile, you have many SEC programs taking turns at the top with of course Bama/ Georgia now, LSU has had a couple natty's, Florida has, Tennessee has had good programs. My point has always been the top and middle of the SEC is so much better than the big ten that it makes the upsets like Saturday happen.