CASTING AROUND

HBO will air Robin Williams and Barry Gibb performing for their suppers Dec. 27 in “Barbra Streisand: One Voice,” the concert special taped recently at her Malibu ranch before a celebrity-studded crowd. . . . Don Johnson will sing the National Anthem before Saturday’s title fight between Mike Tyson and Trevor Berbick at the Las Vegas Hilton. . . . Bill Macy is an ex-con looking for a buried fortune that involves a murder and Barbara Bosson is the mother of the victim in an upcoming episode of “Mike Hammer.” . . . Liza Minnelli plays a hooker who teams with cops Burt Reynolds and Bernie Casey to expose a deadly drug ring in “Rent-a-Cop,” which begins filming this week in Chicago. . . . Doug McKeon is real-life convicted killer Mark Schreuder who killed his grandfather “At Mother’s Request,” a CBS miniseries shooting in Utah. . . . Kelly McGillis and John Shea are early 20th-Century Jewish settlers seeking shelter in Palestine in “Dreamers,” which starts shooting next week in Israel.