CBS Entertainment has ordered five more episodes of "Foley Square" -- the 8:30 Wednesday entry -- which will give the series a run at least through April . . .
A caucus of 20 to 30 women correspondents at ABC News will meet with News President Roone Arledge, News Vice President Joanna Bistany and Vice President David Burke in Washington tomorrow at the Park Terrace Hotel. The meeting is a follow-up to a May meeting in Manhattan at which they addressed "problems and concerns" of women about employment and assignment practices at the division . . .
In the wake of the top management changes at ABC last week, there has been considerable conjecture about Arledge's status at the network where he is president of both the Sports and News divisions . . .
Arledge met with Capital Cities/ABC Inc. Board Chairman Thomas Murphy for more than two hours last week. First reports are that it's Arledge's decision whether to remain at the company and even keep both jobs if he chooses. (Poolside rumors here all last week had Arledge going to NBC Sports to run its 1988 Summer Olympics) . . .
Meanwhile, at ABC Michael P. Mallardi, who had been ABC's chief financial officer, has been named president of the ABC Broadcasting Division . . . in charge of the network's five owned TV stations, ABC Video Enterprises and administration . . .
Thursday John Sias had been named president of the ABC Division, which puts him in charge of the TV network, Entertainment, News, Sports and Sales divisions . . .
The Jan. 9 episode of "The Cosby Show" had its highest national Nielsen rating and share since its Sept. 20, 1984, debut. The 36.9/54 makes that episode of "The Cosby Show" the highest rated episode of a regular series since the Dec. 5, 1980, episode of "Dallas" . . .
On Feb. 1, Denise Kovacevic Yamada will replace Kathy Lee Johnson as a field reporter on "Good Morning America." Johnson will be leaving the show to work with Regis Philbin on his program on New York's WABC-TV. Yamada comes to ABC from her current position as a news anchor at KATU-TV in Portland, Ore. . . .
Starting Friday the Public Broadcasting Service will air a series of TV ads on local network affiliates and run a series of newspaper ads in both the Rochester, N.Y., and Toledo markets . . .
If the short-run $150,000 experiment proves to raise viewership levels, PBS plans to spend as much as $8 million in January and February 1987 on TV ads to be carried over ABC, CBS and NBC. Another $2 million would be spent in local and national print media . . .
In making that announcement at the current network press tour here, PBS President Bruce Christensen said he'd hoped to get PBS stations to boost their local advertising in anticipation of upcoming programs . . .
The search committee for the Corporation for Public Broadcasting board has reportedly narrowed its list of candidates for CPB president to "four or five" and an announcement on a successor for Ed Pfister could be forthcoming at the Jan. 31 meeting in Washington . . .
It is believed no one from the Public Broadcasting Establishment made the finals. On the other hand, nobody from the P.B.E. applied for the job, either. Poolside Potpourri
And from our He's Big, He's Grumpy but He Tells the Truth file: a couple of days ago, Mr. T made a "surprise" appearance at a Boy George press conference announcing the latter's guest role on the Feb. 11 episode of "The A-Team" . . .
At one point, B.G. remarked that "I don't act for a living" . . . prompting Mr. T to blurt, "I don't act, either" . . .
Lesley Stahl has signed another long-term contract with CBS News . . .
She remains on the White House beat and as anchor of "Face the Nation" . . .
There had been reports that Lesley wanted to move to New York. This past fall she even dined with NBC News President Larry Grossman as negotiations dragged with CBS . . . but obviously nothing came of it . . .
Meanwhile, CBS News in New York has made a few executive changes necessitated by the early retirements late last year of Bob Chandler and Ernie Leiser . . .
Mark Harrington, who has been London bureau chief, has been named vice president, news broadcasts, reporting to Executive Vice President Howard Stringer . . .
Ted Savaglio, now L.A. bureau chief, becomes director of hard news, reporting to Vice President David Buksbaum . . .
And Vince Loncto becomes CBS News President Van Gordon Sauter's vice president for administration . . . He formerly worked for Van at CBS Broadcast Group . . .
NBC will repeat "An Early Frost" -- the drama about a young man who learns he has AIDS -- on April 28 . . .
David Letterman has signed for another season as late night talk show host for NBC . . . He's been getting his highest ratings ever lately. His new pact runs through January 1987 . . .
"Remington Steele," which will be ousted from its 10 p.m. Tuesday weekly time slot March 4 in favor of "American Almanac," gets a one-shot exposure Saturday, Jan. 25, at 10 p.m.
But NBC Entertainment President Brandon Tartikoff says "Steele" won't miss a week and will be assigned a new weekly time slot any day now . . .
Incidentally, although Tartikoff confirmed that "American Almanac" will have its 35 hours for the rest of the year, "it is not memorialized in the Tuesday" time slot . . . Sometime in late summer, he plans to start moving "Almanac" around the schedule again and there's no guarantee where it will end up on the fall schedule . . .
Tartikoff says he likes the idea of the entertainment magazine "Fast Copy," which aired as a pilot a couple of weeks ago, but thought execution of the show rated a 5 on a scale of 1 to 10 . . .
"TV Foul Ups, Bleeps and Blunders" has been killed at 8 p.m. Mondays in favor of a new sitcom starring Jack Klugman plus Valerie Harper's "Valerie," in which she plays a mother raising two children on her own.
The still-untitled Klugman show, stressing a father-son relationship, will air at 8 p.m. starting March 3, and "Valerie" plays at 8:30 . . .
Meanwhile, "Valerie" premieres at 8:30 on Thursday, Feb. 27, and the Klugman show gets a tryout on Saturday, March 1, following "The Golden Girls " . . .
Although "The Last Precinct," NBC's newest cop show, will debut on NBC following Super Bowl XX the night of Jan. 26, Tartikoff says he will wait a month before assigning the show a regular time slot . . .
And finally, "Melba," a new half-hour situation comedy starring Melba Moore, will premiere on CBS on Jan. 28. CBS' Tuesday night schedule will lead off with "Melba," in the 8-to-8:30 time slot, followed by "Charlie & Company" from 8:30 to 9 and "The CBS Tuesday Night Movies" from 9 to 11.