Flower child Merlin Olsen plays an Amish father who takes wife Belinda Montgomery and their four children from an East Coast community to start a new life in contemporary California in an NBC movie "Aaron's Way," which films next week in Australia. . . . Bill Macy is a toy salesman (played by Jackie Gleason in the feature) who's at odds with son Todd Waring in the upcoming TV series "Nothing in Common," which begins shooting next week in town. . . . Kathleen Turner plays an investigative TV reporter in another comedy remake of "The Front Page" entitled "Switching Channels," which director Ted Kotcheff films in Toronto in April. . . . Anthony Geary plays an eccentric electronics wizard who records a robbery during a religious show in "Pass the Ammo," now shooting in Arkansas. . . . Christine Kellogg, Leanne Foster on CBS's "Capitol," died on last Friday's episode--but returns this week as a ghost to haunt the soap through its final show March 20.