Dann Cahn, the editorial supervisor on “I Love Lucy” who pioneered the editing of television shows shot in the new three-camera system, died of natural causes on Nov. 21 in Los Angeles.

Cahn began in television in the late 1940s and was still going strong four decades later when he helmed the pilot of the Fox drama series “DEA,” for which he drew an Emmy nomination and won an Eddie from the American Cinema Editors. Cahn picked up a career achievement award from ACE in 2000.

Cahn led the editing department at Desilu. He was editorial supervisor on 106 episodes of “I Love Lucy” beginning in 1952 and 48 episodes of “Our Miss Brooks” from 1953-56. Among his many other credits as editorial supervisor were the Desilu-produced Orson Welles TV project “The Fountain of Youth” and series “Make Room for Daddy,” “The Loretta Young Show,” “The Adventures of Jim Bowie,” “The Eve Arden Show,” “The Real McCoys,” “Whirlybirds,” “The Life and Legend of Wyatt Earp” and “The Lucy-Desi Comedy Hour.”

Cahn also edited some feature films, including “Forever, Darling,” starring Lucille Ball, Desi Arnaz and James Mason; Russ Meyer’s “Beyond the Valley of the Dolls”; Chuck Norris starrer “The Octagon”; and early Dennis Quaid starrer “Tough Enough.”

Editor credits in TV included “The Beverly Hillbillies” and “My Mother the Car” during the 1960s, “Police Woman” and “Man From Atlantis” in the 1970s plus a stream of TV movies that ended with “The Man Upstairs” in 1992.

He was the post-production supervisor on two episodes of “The Fall Guy” in 1983-84.

Cahn directed episodes of series including “Leave It to Beaver” and “Man From Atlantis,” and he was associate producer of the series “Branded” as well a number of the telepics he edited.

Daniel Cahn was born in Hollywood and started in showbiz as an actor. His father and uncle were both film editors.

During WWII he was stationed in Culver City at the Hal Roach Studios with the First Motion Picture Unit.

He was an uncredited assistant editor on a few feature films in the 1940s, including “Pittsburgh” and “Seven Were Saved,” and earned his first TV credit for editing a 1949 episode of the show “Your Show Time.” Cahn began work as an editor on “I Love Lucy” in 1951.

Cann’s wife Judy Baker, who had been a pro golfer, died in 2010. A daughter died in 1973.

Cann’s only survivor is a son, Daniel T. Cahn, an editor and president of the Motion Picture Editors Guild.