Wide Angle: Crossing Heaven's Border (11 p.m. Wednesday, WPBT-PBS 2) -- I'm not saying PBS
has the power or promotional genius to arrange a potential nuclear holocaust as a marketing aid for one of its shows, but with North Korea threatening to fire a missile at Hawaii later this week, the documentary Crossing Heaven's Border couldn't be more timely. It recounts the harrowing, heartbreaking stories of North Korean refugees who escape -- or try to -- across the border into China. It isn't pretty.
Unsung (8 p.m. Sunday, TV One) -- In a weekend of mourning for Michael Jackson, this documentary considers another groundbreaking Motown artist whose left much too soon: Florence Ballard of the Supremes, upon whose life the musical Dreamgirls was loosely based. Ballard had a much better voice than fellow group member Diana Ross, but whose luck was much worse: Alcoholism, obesity and domestic abuse took first her career and then her life.
Hung (10 p.m. Sunday, HBO) -- In this melancholy new sitcom, Thomas Janes plays an economically battered high school coach who realizes he's got one asset that's recession-proof. Full coming review later Sunday.
Shouting Fire: Stories from the Edge of Free Speech (9 p.m. Monday, HBO) -- This documentary on the erosion of U.S. free speech covers everything from a University of Colorado professor fired for saying the 9/11 attacks were America's own fault to a San Diego high school kid suspended for wearing a T-shirt emblazoned "Homosexuality is Shameful." Guaranteed to raise practically everybody's blood pressure.
Dance Your Ass Off (10 p.m. Monday, Oxygen) -- Fat people. Dancing. Really. I don't know what else to say.
Note: Days and times for PBS shows are for the Miami area, and may differ elsewhere.
Let Miami Herald TV critic Glenn Garvin program your TiVo! Just click on his best bets for the week at www.ew tivo.com/guruguide.