ABC and CBS announced some more schedule changes Friday, sending "China Beach" and "Over My Dead Body" to R&R later this month in favor of new series while CBS also assigns a new Friday night timeslot to old "Dallas" ...

Replacing "China Beach" in ABC's 9 p.m. Saturday timeslot starting Jan. 12 will be "Under Cover," a drama series about spies, which will be introduced on ABC earlier that week, on Monday, Jan. 7, with a two-hour movie ...

"Under Cover," formerly called "The Company," stars John Denison and Linda Purl as CIA spies who are married to each other and raising a family. The network calls it "a blend of action, suspense, family drama and office politics {showing} real men and women caught between their loyalties to work, families, country and themselves" ...

The award-winning "China Beach" will retire until later in the season after the broadcast on Saturday of its 10th original episode this fall. Production on the last six shows in the 16-show order will continue. The well-crafted Vietnam drama is produced by the same people, William Broyles Jr. and John Sacret Young, who are producing "Under Cover," which is another reason there wasn't much of a fight put up when the network decided to beach "China." (The other: "Beach" is a writer's show, and Young and Broyles realized last summer they'd run out of top-notch story lines) ...

CBS is pulling the plug on "Over My Dead Body" following its Friday, Dec. 21, broadcast. After a week off because of the Kennedy Center Honors broadcast on Dec. 28, CBS will move "Dallas" from 10 to "Dead's" 9 p.m. timeslot starting Friday, Jan. 4, while introducing "Sons and Daughters" at 10 ...

"Sons" stars Lucie Arnaz, Rick Rossovich and Don Murray in "the comedic and poignant story of the Hammersmiths -- a large, boisterous family that shares a great sense of humor and an ability to snap back from life's tragedies" ...

CBS has now completely revamped its Friday lineup. As previously announced, "Guns of Paradise," the family western drama starring Lee Horsley (called "Paradise" last season), returns to the lineup at 8 on Jan. 4, replacing "Uncle Buck" -- also headed to hiatus -- and the canceled "Bagdad Cafe" ...

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Channel 7 said Friday that Rea Blakey, who will continue as co-anchor (with Paul Berry) of the 5 o'clock news, is taking over Jim Harriott's duties as health reporter. Her segments will be called "Healthcast" ...

Harriott, who lost his anchor job this fall when Seven shuffled its assignments, had been notified earlier that he could remain until his contract expires in February, continuing on the health beat and as a field anchor. Friday, management said Harriott is close to deciding among "several offers" and wants to be free this month to move on ...

Norman Lear's Act III Publishing has closed Channels, a twice-monthly magazine devoted to serious examinations of the TV industry, as of the Dec. 17 issue. The announcement to the staff was made Friday after Lear was unable to find a buyer for the magazine, which was started by former New York Timesman Les Brown in 1981 with a grant from the John and Mary Markle Foundation. Lear, who acquired Channels in 1986, has been dismantling his publishing empire in recent months ...

It was grins and grips at the ABC News bureau here Friday when News president Roone Arledge made a point of visiting the troops after watching Ted Koppel tape his "Nightline" satellite interview with Tariq Aziz, foreign minister of Iraq, for the Friday night broadcast ...

But before the morale-boosting tour, Roone and Ted slipped out for lunch after the 1 p.m. taping. Koppel's contract is up but will be renewed any day now when those two decide how many specials Ted and his KCI production company will have on the network in the future ...

ABC News, by the way, contends the Aziz interview was the first direct Baghdad-to-U.S. chat with an Iraqi official since the Persian Gulf crisis began Aug. 2 ...

CBS News has set Friday, Jan. 18, as the final broadcast of its late-night "America Tonight" series, anchored by Charles Kuralt and Lesley Stahl ...

In a memo to the troops Friday, CBS Broadcast Group president Howard Stringer praised the staff (which also includes Robert Krulwich and Edie Magnus as Friday anchors), adding that "we are very fortunate to know that we can count on the 'America Tonight' franchise as soon as breaking news warrants late-night CBS News specials." Stringer said the new checkerboard of five late-night action dramas will debut on Jan. 21 ...

"America Tonight" surfaced -- a` la "Nightline" -- on a regular basis Oct. 1 in the wake of Iraq's invasion of Kuwait. Its staffs in Washington and New York -- some 35 in all -- were on loan from other CBS newscasts and will be available in a trice should the balloon go up after Jan. 15, the U.N. deadline on Iraq's withdrawal ...

In the most recent national weekly ratings, "America Tonight" averaged a 2.3/7 behind "The Tonight Show's" 5.2/15 and "Nightline's" 5.0/15. The show never achieved more than 80 percent clearances from CBS affiliates around the country, keeping national ratings down, but in major markets like Washington and New York, it frequently registered 3s and 4s on busy news nights ...

ABC Television Network Group has removed Michael Brockman as president of Daytime, Children's and Late Night Entertainment. No replacement was named immediately ...

Brockman, who had been in the job about 18 months, said Friday that the change was "somewhat of a surprise." He said his departure was based on "nothing specific, more of a philosophic difference with the upper management, just a matter of people agreeing to disagree" ...

On his watch, ABC's daytime lineup has been unable to catch up with first-place CBS (although ABC still leads in the key women demographics); in recent weeks the Saturday morning kiddies' lineup, after leading for years, has slipped to second because of the success of CBS's "Teenage Mutant Ninja Turtles"; and "Into the Night Starring Rick Dees" has been a disappointment in late night, although it ranks second behind NBC programming and has recently been renewed through mid-April ...

Two longtime ABC executives, Squire D. Rushnell, vice president, late night and children's TV, and Jo Ann Emmerich, senior vice president, daytime programs, left the network during Brockman's tenure ...

Brockman said conflict with management "embraced more than one day part" ...

Overall, however, he said "it's been a wonderful year and a half." A planned vacation later this month will now "just be a longer one." ...

Don Hewitt, executive producer of CBS News's "60 Minutes," dispatched a "Dear Abe" letter to Anti-Defamation League of B'nai B'rith national director Abraham H. Foxman last week after Foxman criticized the newsmagazine's Dec. 2 broadcast about the Temple Mount incident in Jerusalem for demonstrating "bias and a prejudicial attitude"...

Wrote Hewitt: "Dear Abe. The mail we've got accusing us as you have of a 'biased approach,' is, although greater in volume, not dissimilar from the mail we get from time to time from the other aside accusing us of the very same thing" ...

Hewitt said Friday that "60 Minutes" "hasn't seen that many letters in a long time" following Mike Wallace's report. Some of the letters were read on last night's broadcast ...

The feisty Hewitt continued his "feud" with ABC's Barbara Walters, who, along with U.S. News & World Report publisher Mort Zuckerman, was one of about four people at a New York dinner party last week who cornered Hewitt to criticize the segment, prompting Hewitt to walk out ...

"Has she ever taken her own objections {about reporting on the Temple Mount conflict} to the head of ABC, Roone Arledge, or addressed them to her own network's bureau chief in Tel Aviv? These competitors of CBS are hardly paragons of objectivity themselves," huffed Hewitt ...

A spokesperson for Walters said Friday that "Barbara is a little amazed that Don is so upset by this conversation of about two minutes long at a private party when she complained she didn't think the {Wallace} report was objective. Has he never been criticized before? Barbara says, 'I've been criticized for pieces I've done; it's part of the territory' " ...

Walters suggested to Newsweek that "perhaps Don is stressed out over the holiday season ... or maybe he should think of producing 'Roseanne' " ...

White House Chief of Staff John Sununu will be on "Larry King Live" tomorrow night (CNN at 9). But there will be no viewer call-ins ...

Former president Jimmy Carter will be interviewed on PBS's "The MacNeil/Lehrer NewsHour" tonight ...