Final answer:
Coordinating the video signal between the TV camera and monitor is crucial to avoid flickering which negatively affects viewer experience, demonstrated by delays in remote broadcasts and image disturbances in CRT monitors due to Earth's magnetic field.
Step-by-step explanation:
It is important to coordinate the video signal between the TV camera and TV monitor to avoid unnecessary flicker to the television picture. This coordination ensures that the timing of the video signal transmission and reception is synchronized. When the signal is not in sync, viewers might experience a flickering image because the frame rate of the video signal doesn't match the refresh rate of the monitor, which can distract and detract from the experience.
For instance, a leaky microwave oven can cause interference with a homeowner's WiFi system because both devices may operate on similar frequencies. The microwave can introduce noise that disrupts the WiFi signals. Similarly, when a television news anchor in a studio speaks to a reporter in a distant country, the delay is often due to the signal's travel time, which may involve satellite transmission, resulting in a noticeable lag. This delay illustrates why real-time signal coordination is critical in live broadcasts.
Additionally, when a high-precision TV monitor is placed on its side during maintenance and the image changes color or blurs slightly, this can be attributed to the effects of the Earth's magnetic field on the monitor's electron beams, causing color purity and convergence errors in cathode-ray tube (CRT) monitors.