In television and video production, especially live or live-on-tape programs, a room containing monitors, speakers, switching boards, effects generators, and other equipment, used to monitor and edit a program on-the-fly, or as it is being taped. In much television production (especially half-hour comedies, talk shows, and variety programs), an entire program is acted out live, while a multi-camera set-up is used to tape the action from a variety of angles. In the control room, the director decides which camera is going to be recording the actual image at any given moment. In such productions, there is inevitably some degree of post-production editing and correction.