“Sumo East and West,” filmmaker Ferne Pearlstein's witty, if leisurely, exploration of Japan's 2000-year-old national sport and inroads made by Americans. The hour follows a number of Americans as they wrestle in the U.S. and Japan, and offers a thumbnail history of the sport. Included: an excerpt from a World War II-era U.S. propaganda film. Sumo is “calm, peaceful and serene,” the narrator intones, “like [Japan's] volcano Mount Fuji.”