FILM: If you see only one documentary about fonts this year, make it Helvetica. New York taxi numbers are also in Helvetica. The font is on IRS tax forms, U.S. mailboxes, and ConEd trucks. The 50-year-old sans serif font spells out countless logos: Sears. Bloomingdale’s. JCPenney. Crate & Barrel. Target. Fendi. Jeep. Toyota. Energizer. Oral-B. MetLife. Nestlé. Once you realize Helvetica is everywhere, says Hustwit, "you just can’t stop thinking about it." 7:15, 9pm......