On Saturday, January 19, the Sundance Channel will air Sundance 20, an original documentary about the behind-the-scenes workings of the Sundance Institute, including the Feature Film Lab. Those discussing the institute's development and impact include founder Robert Redford and out filmmaker John Cameron Mitchell (Hedwig and the Angry Inch). Also airing on January 19 will be the "Sundance Awards Preview," a half-hour special examining the films in the feature and documentary competitions at the 2002 Sundance Film Festival, including such GLBT-interest titles as Liz Garbus's The Execution of Wanda Jean and Arthur Dong's Family Fundamentals. (Winners of last year's festival competition included Hedwig and Kate Davis's Southern Comfort.) Check local listings.