Jeremy Lin to be featured in ‘Linsanity’ documentary on HBO called ’38 at the Garden’ from Andrew Kulha, with YardBarker.com/www.yardbarker.com There was a time when Jeremy Lin ruled the NBA. “Linsanity,” as it was known, was more than just a basketball moment. “Linsanity” became a cultural phenomenon, and ultimately a sign of hope. HBO’s new documentary, “38 at the Garden,” will look back at the 2011-12 NBA season, when Lin went from undrafted point guard from Harvard to a basketball icon in the span of a few games. Lin was hoisted into the New York Knicks’ starting lineup due to…