SB Nation Studios (subscribe on YouTube!) is ramping up its college football coverage (which already includes Shutdown Fullback along with much more) as the season approaches, continuing today with the beginning of the SB Nation Studios 2012 Preseason Top 25 countdown series.

Among the latest excitement is a series of quick preview videos on major conferences led by Dan Rubenstein and Bill Connelly. The first batch of conference videos is here, the second is here, and below are the first five in our Top 25.

At No. 21, a team that would've earned a much higher spot if not for its catastrophic bowl performance, the Clemson Tigers:

At No. 22, Notre Dame, which can't possibly give up as many soul-crushing turnovers as it did last season -- can it?

Nebraska's our No. 23, set to begin its second Big Ten season and hopefully have a much more normal-looking offensive attack:

At No. 24, an insurgent juggernaut that's replacing one of the best senior classes of all time, Boise State:

And at No. 25, Kansas State, a team that's always better than it's supposed to be, and that will probably do the same again this year:

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