Part one of term paper
The evolution of broadcast programming can be identified into four stages. The first stage covers the debut of commercial radio in the 1920's. At that time the tone was considered proper, and formal. For several years radio broadcasting emphasized classical or semi-classical music, and historical drama. Commercials were kept brief and alwa ...

Part two of term paper
... homes. The third stage of programming lasted from 1945 until the early 1950's, when television had a explosive growth. Television was preserved as "radio with pictures." Many entertainers and entire programs were transferred successfully from radio to television. At the beginning of the fourth stage, known as The Golden Age of Television, variety shows were the most popular program format. Another television staple of this era was the western. In the late 1950's action-adventure became popula ...