Since the 98-99 season, here is what I found. (Anyone find any longer streaks)?
Iowa 0-15 ats in the middle of the 01-02 season
Florida 13-0 ats - ended the 00-01 regular season 12-0 and covered the first SEC Tourney game for a 13-0 ats run.
Utah 13-0-1 ATS in the middle of the 98-99 season
William & Mary started the 98-99 season 0-12 and ended 97-98 with an ats loss for a two season consecutive game 0-13 ats streak
Central Michigan 0-12, ending 00-01 0-6 and beginnning 01-02 0-6 ats
Best start of season streak: Georgia 9-0 ats in 01-02
Not a pure streak, but Call State Fullerton began 00-01 with a 0-7 streak and ended 99-00 at 1-10 for a miserable two season consecutive game run of 1-17 ats.
don't have good o/u stats so can't help you there.