Gladys Knight and the Pips will receive the 1998 Lifetime Achievement Award from the Rhythm & Blues Foundation, Feb. 26 in New York. Those receiving the foundation's Pioneer Awards include the O'Jays, the Five Satins, "Screamin' " Jay Hawkins and Kim Weston. . . . Spanish-language radio station KKHJ-AM (930) debuted an all-news format Tuesday, making the former talk station Southern California's only all-news outlet broadcasting in Spanish. . . . "The CBS Evening News With Dan Rather" had its best Nielsen ratings numbers in nearly two years last week, drawing 17% of the available audience, tying the 17% share of "NBC Nightly News With Tom Brokaw." ABC's "World News Tonight With Peter Jennings," which has lost some viewers this year, attracted a 16% audience share. . . . The hit "South Park" characters will appear on NBC's "Tonight Show With Jay Leno" on Thursday, one day after the animated series' original Thanksgiving episode airs on Comedy Central tonight at 10. . . . Mel Brooks and Carl Reiner will be at the Westside Pavilion Barnes & Noble tonight from 7:30 to 8:30 to sign their new "2000 Year Old Man" book and CD. . . . "Starship Troopers" star Patrick Muldoon chats online today at 5 p.m. at http://www.et.msn.com. . . . Helped by positive critical reviews, HBO's "Don King: Only in America" topped all four networks in homes with HBO in its debut Saturday night.