MARINA DEL REY, CALIF. -- Channel 5 says that former WRC feature reporter and NBC "House Party" host Steve Doocy has signed to host "Not Just News," described as a "high-energy weekly TV program for kids" to be produced by Five, which is already set to air on Fox stations in New York, L.A., Chicago, Houston, Dallas and Salt Lake City when it debuts in the fall ...

Cable News Network said yesterday that it set an all-time viewership record between midnight Monday and midnight Tuesday, averaging 1,673,000 TV households during that period ...

Two other CNN features, "Crossfire" and "Larry King Live" also set individual show records on Tuesday night with 3.9 and 4.9 ratings, respectively ...

On the other hand, the first two nights of "7:30 News Headlines" on Channel 50 didn't exactly rock the market ...

The program, produced by Channel 4 for airing on Fifty, averaged sixth-tenths of a rating point rating and a one share in its Monday debut and a nine-tenths of a rating point rating and a one share on Tuesday ...

In December, the timeslot had averaged a 0.8 rating for WFTY. WRC has promised advertisers it will eventually produce an average of three rating points. Each ratings point represents 17,491 homes in the Washington market ...

Friends of NBC Entertainment Group chairman Brandon Tartikoff indicated yesterday that he is due to be released from Washoe Medical Center in Reno, Nev., this weekend to begin a lengthy period of therapy ...

Tartikoff suffered a broken pelvis and other injuries over New Year's when his Jeep station wagon was struck by another vehicle near his vacation home on Lake Tahoe ...

Tartikoff's 8-year-old daughter, Calla, remains hospitalized in serious condition at the center after suffering head injuries in the accident ...

That astonishing 18.1 national Nielsen rating and 27 percent audience share for Peter Jennings's "A Line in the Sand" news special Monday night was the highest-rated news special on ABC since "World of the Supernatural" back in December 1978 (those were the days at ABC News!) ...

Fred Rogers, host of "Mister Rogers' Neighborhood," has produced two special 60-second messages for his preschool PBS audience, "to help children, parents and care-givers cope with youngsters' fears about war" ...

One features Neighborhood characters King Friday XIII and Daniel Striped Tiger as they reassure youngsters they will always have someone to take care of them even while war is very scary ...

"I shall make a rule," says the King. "All children shall be well taken care of in their neighborhood and beyond -- in times of war and in times of peace. There. That should do it."

"Just one more thing, please," adds Daniel. "If anybody's scared, I'd like you to know that you'll always have somebody to love you no matter where you are."

Mister Rogers himself delivers the second message, arguing the case that "children don't make real wars. The least -- and best -- we adults can do is to let our children know that we'll take good care of them no matter what" ...

The same message is also contained in a 10-second tape prepared by Rogers ...

And Finally

Just when we thought the semiannual TV writers network tour had lost its grip on unreality out here, CBS Entertainment held its final session yesterday morning ...

First, producer Norman Lear, pushing his upcoming primetime series, "Sunday Dinner," delivered a brief lecture on the decline of spiritual values in American lives ...

Then Rob (Meathead) Reiner said he "cried" when he saw some old "All in the Family" clips while preparing for the CBS "Family" reunion show Feb. 16. And original series producer Ed. Weinberger said he "wept" while reviewing old "Mary Tyler Moore Show" episodes for the 20th anniversary show on CBS, Feb. 18 ...

And then one of our own grabbed a microphone to decry "the paucity of imagination" being displayed by network programmers again this season. We were back to "who cares?" ...