Dick Williams, president and general manager at Channel 20 for 8 1/2 years, is the new president and general manager of Channel 11 (KSTW) in Seattle . . .

Williams's replacement at WDCA, which is owned by Paramount, has not been named . . .

During Williams's tenure at Channel 20, the UHF station changed from independent to network-owned when it began carrying UPN in January 1995. Annual revenues rose from $17 million to more than $45 million during his time there . . .

"I'm sad to be leaving," Williams said Friday, "but I couldn't have left at a better time." WDCA, usually a poor performer in the May ratings sweeps, enjoyed its best May book in his eight years . . .

Williams's move to Seattle is part of a complicated three-way ownership and affiliate switch that has utterly confused Seattle TV viewers over the past two years . . .

KSTW, now owned by Gaylord Entertainment, will switch from being the market's CBS affiliate to a Paramount-owned UPN station as of July 1 . . .

The same day, Channel 7 (KIRO) will once again become a CBS affiliate, this time owned by Cox Broadcasting of Atlanta. In anticipation of the Paramount takeover, Gaylord recently announced it was laying off 28 percent of its work force at KSTW, mostly in the news unit. As a UPN station, Channel 11 will broadcast only a 10 p.m. news show, instead of competing with network affiliates in local news in the mornings, early evenings and late night . . .

One of the big winners amid the complicated switches could be CBS, which returns to a channel that was once one of the most powerful in the country's 12th-largest TV market. When CBS went to Channel 11 two years ago, KIRO hung on to the station's popular local news team, while Channel 11, which had had no news unit, was forced to start from scratch. Most Seattle TV news fans didn't follow CBS (or Dan Rather) to Channel 11 . . . Now This

The Children's Miracle Network telethon, which aired here over the weekend on Channel 9, reports $4,445,230 raised locally this year, up from $3.7 million in 1996. The telethon brought in $146 million in the United States and Canada for 1997 . . .

Amy Grossberg, charged along with boyfriend Brian Peterson with killing their newborn son at a Newark, Del., motel in November, taped an interview with Barbara Walters for ABC News's "20/20" on Wednesday -- and may have violated a court order in doing it . . .

ABC said the tapes were still being edited and no air date had been set, though it could be seen as early as Friday . . .

Delaware Deputy Attorney General Peter Letang says Grossberg's interview, her first public statement since she was charged, may violate a gag order for the defendants and lawyers involved in the case and that he is looking into it . . .

One last expression of ABC's prime-time futility this season: The two-hour Thursday night conclusion of a three-part story arc for "Murder One" averaged a 7.7/13 . . .

That wrapped up the heralded "Murder One" courtroom series after two futile seasons as the three-part finale did a 5.5/10 on opening night on May 25 and a 9.6/15 a week ago tonight -- for a three-night average of 7.6/13 . . .

The poor showing of the "Murder One" finale on Thursday did produce smiles at CBS News, where a "48 Hours" program on lying did an 11.0/19 at 10 p.m., the magazine's best showing in three years Also on Thursday night, the NBA playoff game on NBC between Utah and Houston did a 13.0/23 in the national ratings, including a 13.6/22 on WRC here. And "Murder One" concluded with a 9.3/14 on WJLA and "48 Hours" did an 8.2/13 on WUSA. Each national ratings point represents 970,000 TV homes . . .

John McDonough, 43, has been named the new Captain Kangaroo for the upcoming syndicated series "The All New Captain Kangaroo," which debuts in September . . .

McDonough, 43, is a bewhiskered storyteller from Connecticut who was selected from about 1,000 candidates for the role. He is a two-time regional Emmy winner for his "Environment 2000" on Connecticut public TV. The new series also will return such familiar folks as Mr. Green Jeans, Mr. Moose, Bunny Rabbit and Grandfather Clock (an Airwaves favorite) as well as new cast members like the puppet Joey the Kangaroo and conservationist Margo McKnight and Sea World animal expert Chuck Cureau . . .

The producers of NBC's "ER," the top-rated network series again in 1996-97, are considering a live fourth-season premiere -- if they can figure out how to do it . . .

Executive producer John Wells told Variety one way to make a live hour work would be to use three stages for the episode and have cast members transported from scene to scene by golf cart . . .

The cast, told of the idea at the season-ending lunch last month, is reported to be enthusiastic about the idea. Fox's sitcom "Roc" was live a few years back but there hasn't been anything of stature live on the tube since December 1982, when NBC did a live drama based on Carson McCullers's "The Member of the Wedding" . . .

Among 11 new projects approved for $3 million in early funding by the Corporation for Public Broadcasting are a three-part, three-hour documentary titled "Sam Clemens & Mark Twain" to be produced by Espritruth Films of Potomac and "Free to Dance: The African American Presence in Modern Dance" . . .

The latter is a three-hour documentary series to be produced by the American Dance Festival in New York, WETA here and the Kennedy Center. It will tell the story of prominent African American choreographers who have made lasting contributions to modern dance between 1900 and 1990 . . .

And a tip of the ole rabbit ears, tastefully wrapped in pink, to Nancy and Joe Yasharoff, proud parents of Hannah Marie, who arrived last Tuesday at Shady Grove Hospital weighing 7 pounds 13 ounces. . . .

Mom is the public relations director of the Washington Capitals. Dad is senior sports producer for Channel 5. Hannah is their first child . . .

And another tip of the ole rabbits, one carefully wrapped in pink, the other equally carefully wrapped in blue, to Tory and Peter Johnson, proud parents of twins Emma and Jake, who both arrived at New York University Hospital on Friday and are doing well . . .

Mom is the director of communications for Nickelodeon, the kiddie cable channel. Dad is the TV columnist for USA Today. The twins are the couple's first children . . .

And one more tip of the ole rabbit ears, tastefully wrapped in pink, to Madhulika Sikka and Jim Millward, proud parents of Priya Celia Sikka Millward, who was born May 25 at Georgetown Hospital weighing 6 pounds 7 ounces . . .

Mom is a producer with "Nightline" here. Dad is a professor of history at Georgetown University. Priya is the couple's first child . . . More May Madness

Here's some info on how local stations did in the a.m. during the recent May sweeps -- and yes, most of their numbers are down from a year ago, like every other daypart. Keep in mind that each ratings point represents 19,085 TV homes -- as if you could possibly have forgotten -- and that the May 1996 figures are (in parentheses):

From 5:30 to 6 a.m. Mondays through Fridays: WUSA news leads with a 3.3/23 (2.8/19), followed by WRC news at 2.1/14 (2.7/18) and WJLA news at 1.7/2 (1.9/13) . . .

From 6 to 7 a.m. M-F: WRC (4.1/19) and WUSA (3.8/17) are tied for first at 3.3/17, followed by WJLA at 3.2/16 (3.4/16) and Fox News at 1.9/10 (3.9/14) . . .

From 7 to 9 a.m. M-F: NBC's "Today" show on WRC leads with a 3.9/16 (4.7/20), followed by ABC's "Good Morning America" on WJLA at 3.5/14 (4.3/18); "Fox Morning News" on WTTG at 2.7/11 (3.1/13) and "Eyewitness News" on WUSA at 7 with 2.2/9 (no change) and CBS's "This Morning" at 8 with 2.0/8 (2.1/8) . . .

From 9 to 10 a.m. M-F: Maury Povich on WUSA leads with a 3.5/17 (up from Donahue's 2.5/12 in 1995), followed by "Regis & Kathie Lee" on WJLA with 3.4/16 (3.8/19); News 4 on WRC with 2.6/12 (down from a 3.0/15 for Povich last May) and "Fox After Breakfast" on WTTG at 1.4/7 (down from a 1.9/10 for Gordon Elliott a year ago) . . .

From 10-11 a.m. M-F: First place goes to Rosie O'Donnell on WJLA with a 4.2/19 (up from George & Alana's 2.0/11 in '95), followed by a 3.9/18 for Sally Jessy Raphael on WUSA (3.8/20); a 1.6/7 for the "Dating/Newlywed Game" on WTTG (1.4/8 for Mark Wahlberg in '95) and a 1.5/7 for Leeza on WRC (2.4/13 in '95) . . .

From noon to 12:30 p.m. M-F: WUSA News continues to crush them with a 6.8/30 (but off from a 7.9/35), compared with a 1.9/8 for both WJLA's "Inside Edition" (2.2/10) and Fox News on WTTG (1.6/7); and a 0.8/4 for a full hour of NBC's "Sunset Beach" on WRC (2.0/9 at local news a year ago) . . .