Bad memories

ABC’s “20/20” (Ch.7) turns the spotlight on several survivors of the Columbine massacre, who speak frankly tonight (10 p.m. with Diane Sawyer) and Friday (10 p.m. with Barbara Walters) about their terrifying ordeal.-

Lotsa puck

MSG hockey announcer John Davidson will work as an NHL studio analyst for ABC as it begins its five-year contract this season.

Davidson was Fox’s lead game analyst last year.- Ratings!

Aargh! Third-quarter ratings:

*MSNBC’s total-day ratings rose 4 percent, while its prime-time programming rose 5 percent over 3rd Quarter ’98.

*The “NBC Nightly News” won the third quarter in homes, total viewers and adults 25-54.

*Fox News Channel had the largest increase in daytime and prime time vs. 3rd quarter ’98.

*ABC’s “World News Tonight” finished the 1998-99 season with a 19 percent edge over CBS.-

Express Lines:

*Barbara Alvarez has been named a contributor to CBS’ “The Early Show.”

*Ch.11’s “New Batman/Superman Adventures” beat Ch.7’s “Oprah Winfrey Show” on Monday (4-5 p.m.).

*On tomorrow’s “48 Hours” (10 p.m. on Ch.2): Susan Spencer interviews victims of the hate-crime shootings at the North Valley Jewish Community Center in L.A.

*”NBC Nightly News” is TV’s best newscast, according to a Broadcasting and Cable survey of TV news directors.

*On today’s “Queen Latifah” (9 a.m. on Ch.5): Sean “Puffy” Combs.

*MTV’s “BIOrhythm” next Wednesday (10:30 p.m.): Jennifer Lopez.

*”Ricki Lake” New York’s top-rated talk show on Monday.