David Jacobs, the writer and producer who created the primetime soap operas “Dallas” and “Knots Landing” died on August 23 at Providence Saint Joseph Medical Center in Burbank, CA. He was 84.

“Dallas aired for 14 seasons and 3576 episodes, starting out as a five-part miniseries in April 1978 before wrapping in May 1991. It was the No. 1 show in the Nielsen ratings after its 4th, 5th and 7th seasons. Meanwhile, the spinoff, “Knots Landing,” debuted in December 1979 and also ran for 14 seasons and 344 episodes, a solid Thursday night staple through May 1993.