Neophyte actress-model Donna Rice, whose relationship with former senator Gary Hart last May ended his 1988 Democratic presidential campaign, has broken off negotiations with ABC to make a film about Hart and herself ...

At the time ABC announced the film project, a network executive vowed that it would provide intimate details about the relationship between the two although from the first, through spokesmen, Rice repeatedly let it be known that, for reasons of dignity, she would refuse to provide any such details ...

Earlier this week, both Rice's attorney and an ABC spokesman would say only that the project had foundered because of what they called "creative differences" ...

Rice's attorney, David Smith, said in Los Angeles Monday that his client wanted certain written assurances that the network was unwilling to provide ...

He added, however, that he did not believe that Rice's adamant refusal to provide specifics was the reason for canceling the project ...

ABC spokesman Bob Wright, confirming only "creative differences," said "we wish her well" ...

Smith said Rice did not close the door on a future TV movie project, adding she "admitted her naivete' fostered many of her Tinseltown problems and is determined to get a management team in place and focus her own energies back into acting" ...

The three-hour conclusion of CBS' "Echoes in the Darkness" Monday night averaged a 22.0 national Nielsen rating and a 33 percent audience share, an increase over Part I's 20.1/33 Sunday night. Each national rating point represents 886,000 TV homes ...

From 8 to 9 on ABC, "MacGyver" did an 11.2/17, while the Monday Night Football game between the Cowboys and the Giants from 9 p.m. to 12:16 a.m. averaged a 17.5/30 nationally ...

On NBC, "ALF" and "Valerie's Family" averaged a 17.5/28, while the movie "Oh God! You Devil" flamed out with an 11.2/17 ...

Locally, "Echoes" on Nine did a 23.2/34 (there are a lot of lawyers in this town, TV Column fans), while the NFL game on Seven did a 24.1/45 (there are even more pro football fans in this town, TV Column fans) ...

Meanwhile, despite the competition, Part I of the five-part "Shaka Zulu" on Five managed a 13.3/19, which bodes well for the future of the series. Each local rating point represents 15,851 TV homes ...

Puff Puff

Channel 5 will provide live coverage Sunday morning of the 12th annual Marine Corps Marathon here between 9 and noon ... a first for the event ...

WTTG sportscaster Steve Buchhantz will host the show with help from world-class runners Bill Rogers and Missy Kane ...

And Channel 5 has put out a call for 50 good men and women to serve as volunteer spotters along the route of the 26-mile run ...

There will be a training session of less than two hours Friday night starting at 7 p.m. at the station, 5151 Wisconsin Ave. NW. If chosen, we have to tell you that reporting time Sunday is 6 ayem ...

If you're still interested, marathon mavens, please call Gina Burgin at 244-5151, ext. 470, for details. That's 244-5151, ext. 470 ...

Have we told you that ABC has given "thirtysomething" (27th in this week's ratings, below) a commitment for a full season of 22 shows? Oh...

And lest we forget: Cable News Network has launched a nightly half hour called "Inside Politics" which will run right through the 1988 election campaigns ...

The 6 p.m. show kicks off the first three weeks with appearances by all the major candidates. Sen. Robert Dole appears tonight, the Rev. Jesse Jackson tomorrow and Rep. Jack Kemp on Friday (you've already missed Vice President Bush, who appeared last night) ...

Liberated by the Nielsen peoplemeters in mid-September, "CBS Evening News With Dan Rather" won the network news race for the sixth week in a row with a 12.4 Nielsen rating and a 22 percent audience share ...

"ABC World News Tonight With Peter Jennings" was second at 11.3/20 and "NBC Nightly News With Tom Brokaw" was third with 11.1/20 ...

That was ABC's best rating since the week ending Feb. 6 ... and CBS' best showing since the first week in April ...

We hear that with the cuts at NBC News beginning, at least 10 former NBC employes have already applied to catch on with CBS News' upcoming two-hour morning show, which starts Nov. 30 ...

One former NBCer who has already found a home at CBS News, with "West 57th," is tape editor David Ewing, who used to work at "1986" and as an editing supervisor for "Today" out of Washington. Most recently, he walked the NABET picket lines out on Nebraa Avenue ...

TV Ratingzzz

Following are the top 20 network primetime shows last week, ranked according to the percentage of the nation's 88.6 million TV households that watched, as measured by the A.C. Nielsen Co. A share represents the percentage of actual sets-in-use tuned to a particular program when it is aired.

31.3The Cosby Show47NBC2 27.7A Different World43NBC3 26.8Cheers41NBC4 25.7Growing Pains38ABC5 25.0Night Court38NBC6 23.7Who's the Boss? 36ABC7 21.9Murder, She Wrote32CBS8 21.7 60 Minutes33CBS9 21.0L.A. Law35NBC 21.0Family Ties31NBC11 20.1Echoes/Darkness I33CBS12 19.3Moonlighting31ABC13 18.9The Golden Girls34NBC14 18.5ALF28NBC15 18.3Newhart28CBS 18.3Kate & Allie27CBS17 18.0My Two Duds26NBC18 17.9Matlock27NBC19 16.9Dallas28CBS20 16.6Designing Women26CBS

In a rare week during which most of the regular series programming on all three networks was in place, NBC returned to first with a 15.8 rating and a 26 percent audience share ...

CBS, which just might consider not showing up on Saturday nights for the rest of the season, nevertheless regained second with a 13.4/22. ABC, the World Series out of the way, returned to third at 12.6/21 (there's another network that could take Saturday night off with nobody noticing) ...

The line of mendicants lined up outside the Primetime Pantheon in the unseasonably warm weather yesterday was short and unimpressive, including only NBC's "Dangerous Affection," which finished 21st for the week, ABC's odd Monday Night Football twin bill, in 22nd; and NBC's "Deep Dark Secrets" in 25th ...

The NBC "Harry Anderson Sideshow" special at 10 p.m. Friday tied for 62nd, performing just a poorly as "Private Eye," one of NBC's few real failures this fall, usually does in that timeslot ...

Speaking of Friday, ABC brought back "Mr. Belvedere" and introduced "The Pursuit of Happiness" in the 9 to 10 p.m. timeslot. Although the pair could do no better than 50th and a tie for 60th, respectively, they still managed to average a 19 share, seven more than "Max Headroom" was regularly delivering before he was c-c-c-canceled about a month ago ...

This week's Final and Unless That Recent Change at the Top of CBS Entertainment Means the Network Has Become a Non-Profit Charitable Institution Which We Somehow Doubt Probably Fatal Five included all four CBS Saturday night entries ...

Its "West 57th" finished in 72nd place, followed, in order, by "My Sister Sam;" ABC's "The Midnight Hour" (a Saturday movie fill-in that didn't do any better than the cancelled "Once a Hero" and "Ohara" usually do); CBS' "Everything's Relative"; and "Leg Work," a classy hour that nevertheless finished 76th and dead last in the three-network rankings for the week ending Nov. 1 ...

In fact, so poorly did CBS do on Saturday, Fox Broadcasting's "21 Jump Street" finished ahead of "Everything's Relative" and "Leg Work" in ratings that included the fourth network. The Sunday night Fox entry scored a 6.1/10, its best national Nielsen effort yet ...

With or without Fox nipping at its heels, ABC's Sunday lineup continued to look shaky -- this time with help from the start of CBS' "Echoes in the Darkness." ABC's Disney movie finished in a tie for 56th; "Spenser: For Hire" tied for 62nd; "Dolly" made it back up to a tie for 44th; while "Buck James" dropped back to 65th in the weekly rankings ...

"Dolly" premiered in Week One of the new season with a fifth place finish and a big 24.7/38. With two Sundays off because of the World Series on ABC, she had been averaging a 19.0/29 in three appearances ...

But "Dolly" slipped to a 12.6/19 last week. That represents a loss of 11.8 million TV homes and maybe 25 million viewers between Dolly Parton's September debut and her appearance on the sixth Sunday of the season ...