Television (TV) is a widely used telecommunication medium for transmitting and receiving moving images, either monochromatic ("black and white") or colour, usually accompanied by sound. TV is designed not only to entertain people, but also to cover events around the world. Correspondents cover only global problems that could affect, for example, the economic development of a country.
Reporters like to cover events from the lives of celebrities: actors, singers and others. You may ask why? Because they everyone wants to know about them, rahter than a certain John Pupkin who no-one knows and nobody cares about; unless he causes a disturbance, he will never be known.
That would be about you or your street talking on television event should happen at least the urban scale.
Sorry, Энни but I am really not certain how to correct your last two sentences, because I am not able to clearly understand them.
color / colour are US/UK alternatives.
Don;t forget the spaces after the fullstop at the end of each sentence.