WEDNESDAY, APRIL 20

MYSTERIES OF THE GREAT PYRAMID
CBS (8 p.m. ET)

Getting in on the Egyptology boom (page 21), CBS examines the Great Pyramid of Giza, whose sides, ancients believed, guided the soul to heaven. Alexandria-born Omar Sharif narrates.

THE BUSINESS OF EXTINCTION
PBS (8 p.m. ET)

The lucrative animal smuggling trade is threatening the demise of endangered species. Actor William Holden, a devoted conservationist, describes cases of parakeets stuffed in hair rollers and baby pythons smothered in hidden pockets.

THURSDAY, APRIL 21

SINATRA AND FRIENDS
ABC (10 p.m. ET)

Ol' Blue Eyes proves that young four-eyes John Denver isn't his only friend, hosting Natalie Cole, Loretta Lynn, Leslie Uggams, Dean Martin, Tony Bennett and Robert Merrill.

THE LOU RAWLS SPECIAL
ABC (11:30 p.m. ET)

Singer Lou Rawls salutes Louis Armstrong, Sam Cooke and Nat King Cole in a soulful tribute. Guests on his first special are Lola Falana, Crystal Gayle, the Emotions and comic Kip Addotta.

FRIDAY, APRIL 22

SEX FOR SALE
ABC (10 p.m. ET)

New York is far from the only Naked City these days, and this ABC News Closeup looks at the sex-pornography-perversion industry nationwide.

ANN-MARGRET-RHINESTONE COWGIRL
NBC (9 p.m. ET)

With a little Las Vegas overproduction and a load of Bob Mackie duds, Ann-Margret plays country girl on the Grand Ole Opry stage in Nashville. Two Opry veterans, Minnie Pearl and Chet Atkins, and two ringers, Bob Hope and Perry Como, help.

MONDAY, APRIL 25

THE WAR BETWEEN THE TATES
NBC (9 p.m. ET)

Richard Crenna plays a college professor seduced by a provocative student (Annette O'Toole). Elizabeth Ashley is his fretting wife in an adaptation of Alison Lurie's best-seller.