Local news sets are relying on big video displays and monitor arrays such as those at WNBC New York to tell more compelling stories. They are also making it easier for stations to repurpose those sets for other shows. This is Part One of a four-part Special Report on news studios and sets. Part Two on video display controllers also appears today. Part Three tomorrow will explore how the NBC O&Os have upgraded many of their facilities in a Q&A with the group’s Therese Gamba and Jeff Morris. Part Four on Thursday takes a close-up at the innovative approach at WTXF Philadelphia and KDKA Pittsburgh.