Very few people, especially in America, go through life untouched by the media and entertainment industry. However, the terminology associated with media and entertainment isn't as common. Understanding the vocabulary is necessary if you find yourself working in the media and entertainment industry. Consider these terms to help you out. Journalism Journalism is the reliable reporting of current events and news through various media like television, radio, newspapers, magazines and the Internet. News journalists formulate feature stories, breaking news and investigative reports. Opinion journalists produce columns, reviews and editorials. Digital broadcasting Digital broadcasting is the transmission of digital signals over the air. This replaces the old analog signals that used to be the standard for over the air broadcasting. Digital broadcasting allows for more options and higher quality. Cable networks Cable networks are a package of channels received through cable or satellite. On older systems, there may only be 20 cable networks. However, on newer cable and satellite systems, there could be more than 150 cable networks. Local channels Whether through a free signal over the air or through cable or satellite, local channels offer information that pertains to your particular area of the country. Local channels often feature news, weather and other local programming to help keep citizens in the area informed. Television ratings Television ratings are a scale to determine the popularity of a program. Using statistical sampling, the ratings company can determine which shows are popular and which shows are not. Networks use this information to renew, revise or cancel television shows. Live television Live television is programming performed live on location, and broadcast to the audience without editing. Live television offers talent one chance to get it right, because there's no time to edit mistakes. Many awards shows and news programs are broadcast live. However, many networks require a three or five-second delay so there's time to respond in the event of an inappropriate situation.