This guide is designed to alert readers to the scope and variety of programming coming up. Listing is not meant to represent blanket endorsement. Viewers are urged to be selective. SATURDAY A Tribute to Bing Crosby With Perry Como (PBS 8-9 p.m.): ``Evening at Pops'' salutes Bing and also pays tribute to Louis ``Satchmo'' Armstrong. Remembering Bing (PBS, 9-10:23): Repeat of a 1987 special.
SUNDAY Great Moments From `Nature' (PBS, 7-8:50 p.m.): Repeat of some of the best segments from five years of PBS's ``Nature'' series. Gotham (Showtime/pay cable, 9-11 p.m.): Tommy Lee Jones stars in original, stylish detective ghost story. Hollywood: The Golden Years (A&E/cable, 10-11 p.m.; repeated at 2 a.m.): Second in six-part history of RKO Radio Pictures focuses on behind-the-scenes story of Fred Astaire-Ginger Rogers collaboration.
MONDAY Simon and Garfunkel: The Concert in Central Park (PBS, 8-9:50 p.m.): The now-legendary reunion concert of 1961 recaptures the past with the duo's enduring favorites. Tanner '88: The Reality Check (HBO/pay cable, 10-10:30 p.m.): Latest segment of political spoof that has become a cult series, directed by Robert Altman, written by Garry Trudeau. Aretha Franklin: Queen of Soul (PBS, 10-11 p.m.): ``American Masters'' follows the singer's career in performance and interviews.
TUESDAY Animal Architects (PBS, 8-9 p.m.): Repeat of ``Nova'' on nature's own construction industry. Tom Peters: The Leadership Alliance (PBS, 9-9:55 p.m.): Management expert Peters delves into the secrets behind the successes of four outstanding leaders. Louie Bluie (PBS, 10-11 p.m.): ``P.O.V. (Point Of View)'' presents director Terry Zwigoff's portrait of Howard (Louie Bluie) Armstrong, leader of a black string band.
WEDNESDAY 16 Days of Glory (PBS, 8-9 p.m.): Final part in series of dramatic tales about the 1984 Summer Olympics. Mark Russell Comedy Special (PBS. 9-9:50 p.m.): Political satirist pokes fun at the conventions. Vietnam War Story (HBO, 10-10:30 p.m.): Fine fictional series delves into the self-image of the men who fought the war in Southeast Asia. Gregory Peck (Cinemax/pay cable, 9-10 p.m.; repeat Fri. 4 p.m.): Film-clip autobiography of longtime star, narrated by Peck himself. Irving Berlin's America (PBS, 10-11:27 p.m.): Repeat of tribute to artistry of the man and his music.
THURSDAY George Stevens: A Filmmaker's Journey (ABC, 8-10 p.m.): George Stevens Jr.'s portrait of his filmmaker father.
Schedules may vary in some time zones. Please check local listings, especially for PBS, where individual stations often air programs on differing days and times.