First you have "Hard Knocks" from HBO. (Tampa Bay rumored to be this season's team) Then you have the 24/7 preview for upcoming championship boxing fights. Then you have 24/7 documentary series with the Caps and Pens for the Winter Classic. (Editor's note: No one cared about 24/7 Nascar) Now Showtime is trying to counter with "The Franchise" which initial season follows around the San Francisco Giants. I didn't think baseball would work because it's too laid back, but I guess with the power of editing, charismatic players (See Wilson, Brian) and uncensored microphones, you probably have TV success.
If only David Stern let the NBA have a show ("The Association" doesn't count, it's on ESPN) that would follow a team uncensored, then all four major sports would be spoken for. Here's the trailer from yesterday and the series premieres on July 13th.