The control room is an elevated room about ten steps above the floor of the studio. All of the video and audio equipment is contained in this room. There is also a window overlooking the studio floor so the sound man and directors can keep an eye on how the show is progressing.  
The 4 cameras, in the studio, are fed up into a video mixer where the director can choose which camera angle he wants to put to tape. All of the graphic displays and video effects are done in the control room by the director in real time. There are many effects that can be achieved but to tell you the truth, we are not really sure how most of them work. As far as we can tell we can pan, split the screen, fade from camera to camera and display text. There are probably a lot more effects to use but those are for another day.  

     The directors count off the beginning of the show to the cameramen, via a headset microphone system, who in turn hand signal to Mike when to start. After that it's 29.5 minutes of live video. During the show the directors keep in constant contact with the cameramen informing them which of the 4 cameras they will go to next as well as giving the cameramen ideas for different shots they would like to see. They also give the time warnings letting Mike know how much time is left till the end of the show. This helps Mike know how much talking or playing he needs to do.

     The directors are responsible for making sure that the cameras are on the right people. If the guest is talking or playing they need to make sure there is a camera covering them. If a guest is just about to finish a song and Mike is about to start talking, the director has to make sure there is a 2-shot ready or a camera covering Mike. It's actually a pretty tricky job because it's live and because it's hard to tell what's coming up.

     The finished product is displayed on a monitor in the studio so we can all see what the directors are up to. The monitor is visible to Mike and the guests so if you happen to notice Mike or a guest looking up during the show, they are probably watching themselves on the monitor. Having been a guest on the show I know how hard it is not to look at the monitor!