The free show is about to end. Passers-by on Connecticut Avenue in front of the Mayflower Hotel and Raleighs often paused to look across the street and watch the girls in leotards and tights going through workouts at Diana's exercise studio. There were no serious traffic accidents or tie-ups because of the dancers, but the owner of the building wasn't impressed. He has ordered that the windows be covered with drapes. So by mid-November, just when we need something to brighten the bleak days, the exercisers will be hidden from view. Mo Sussman, owner of Joe & Mo's restaurant, said that as a Connecticut Avenue passer-by, he was "appalled" by the decision" . . .

On the hospital beat: Washington's Mr. Theater, Father Gilbert Hartke, is at home at the Dominican House at Catholic University recovering from having a pacemaker inserted this week at Providence Hospital. "Instead of a gold watch," Hartke said yesterday, "every retiree ought to be given a pacemaker" . . . Rock 'n' roll legend Little Richard, who has been in Cedars-Sinai Medical Center in Los Angeles for treatment of injuries suffered in a car crash Oct. 8, was released Wednesday . . . Alabama Gov. George C. Wallace had a polyp removed from his colon yesterday. The polyp will be tested, but Wallace's physician said it did not appear to be cancerous . . .

Rep. Jack Kemp raised $1.2 million last night in New York at a dinner billed as the largest federal campaign fundraiser in history . . .

Keri Hulme, a New Zealand writer, was awarded the $21,000 Booker McConnell Prize, Britain's top literary honor, last night for her novel "The Bone People" . . .

"Violets Are Blue," starring Sissy Spacek and Kevin Kline, filmed in Ocean City during the summer of 1984, will have its world premiere there on Feb. 9. It should be a major event for the resort town since a number of Ocean City residents were extras in the film . . .

The continuing saga of the DeLorean divorce: Cristina Ferrare Thomopoulos disputed the claim that she neglects her children. She testified in divorce court that she gets up at 5:30 a.m. to cook their breakfast, helps them with homework and makes Sunday spaghetti dinners.