Greystone Communications will pad its status next year as the most prolific program supplier to the Arts & Entertainment Network, with two more historical documentaries joining its three ongoing series.The new projects, both to air in ’94, are the four-hour event “Titanic: The Complete Story” and six-hour “The American Revolution,” the latter currently filming in the U.S., U.K. and France. The company has also secured renewals on the weekly one-hour series “The Real West, Hosted by Kenny Rogers” (A&E’s highest-rated program), “Civil War Journal, Hosted by Danny Glover” and “Brute Force, Hosted by Gerald McRaney” (who replaced George C. Scott). In addition, an upcoming segment of “Brute Force,” which deals with the weapons of war, will serve as a pilot for a possible spin-off series. Greystone will also participate in A&E’s dramatic programming efforts with “Mystery Hour,” a two-hour drama pilot. The production company is also discussing various programming concepts for A&E’s planned ancillary service, the History Channel. Under president Craig Haffner, the one-time program director at KABC-TV, Greystone has established a niche in relatively low-cost historical or reality programming, including syndicated fare like “Remembering World War II” and “Secrets & Mysteries.” The company also put together the recent NBC special “The Defense Rests: A Tribute to Raymond Burr” in association with NBC Prods.