The news magazine “48 Hours Mystery” (9 p.m., today CBS) promises us yet more details about the police investigation into the disappearance of Natalee Holloway.

Wake me up when there is real news.

While thinking about this story, I wondered how many other kids have gone missing since May, when the ceaseless Holloway coverage began. It took me about 13 seconds and two clicks on an Internet search engine to find the following statement: “Nearly 800,000 children are reported missing every year.” The source of that quote was a memo from U.S. Atty. Gen. Alberto R. Gonzales, commemorating National Missing Children’s Day. You can look it up at www.ojp.usdoj.gov/pressreleases/amber052005.htm.

The memo is dated May 20, 2005. That’s 10 days before Holloway was reported missing and the avalanche of coverage began.

Wake me up when we hear about the other 799,999 stories.

¢ Ricky Gervais, the creator of “The Office” whose quirky comedy Internet offerings were recently cited by the “Guinness Book of World Records” as the most downloaded podcasts ever, will guest star on “The Simpsons” (7 p.m., Sunday, Fox,).

Today’s highlights

¢ The NCAA Basketball Tournament (6 p.m.) continues.

¢ Scheduled on “Dateline” (7 p.m., NBC): very different twins.

¢ Mel Gibson and Joaquin Phoenix star in the 2002 supernatural thriller “Signs” (7 p.m., ABC).

¢ Standup comedy on “Kathleen Madigan: In Other Words” (7:30 p.m., Comedy Central).

¢ A schoolyard grudge gets ugly on “Law & Order: SVU” (8 p.m., NBC).

¢ A rapper faces murder charges on “Conviction” (9 p.m., NBC).

Sunday’s highlights

¢ Scheduled on “60 Minutes” (6 p.m., CBS): The Tiger Woods Learning Center; a hedge fund under suspicion.

¢ Scheduled on “Dateline” (6 p.m., NBC): an interview with Michael Schiavo.

¢ The sea-faring documentary series looks back on “Deadliest Catch: Best of Season 1” (6 p.m., Discovery).

¢ A comic chronicles the dumb things that irk him on “Ron White: You Can’t Fix Stupid” (8 p.m., Comedy Central).

¢ Carmella seeks advice from an unusual source on “The Sopranos” (8 p.m., HBO).

¢ A teen’s alibi story hits an emotional chord on “Crossing Jordan” (9 p.m., NBC).