Originally, CB (named Citizens Radio by the Federal Communications Commission as of 1972) required the use of a callsign in addition to a purchased license ($20 in the early 1970s, reduced to $4 on March 1, 1975); however, when the CB craze was at its peak many people ignored the requirement and invented their own nicknames (known as "handles"). Lax enforcement of the rules on authorized use of CB radio led to widespread further disregard of the regulations (notably in antenna height, distance communications, licensing, call signs, and transmitter power). Individual licensing came to an end on April 28, 1983. The popularity of the use of CB radios in 1970s made its way into films, television, and music by the late 1970s. Films such as "Smokey and the Bandit" (1977), "Breaker! Breaker!" (1977), "Citizens Band" (a.k.a. "Handle with Care" (1977), and "Convoy" (1978), made heavy reference to the phenomenon, as did television series such as "Movin' On" (debuted in 1974) and "The Dukes of Hazzard" (debuted 1979) helped cement CB radio's status as a nationwide craze in the United States over the mid- to late-1970s. The phenomenon also inspired several popular and country music songs in 1975 and 1976:   Betty Ford, the former First Lady of the United States, used the CB handle "First Mama". Voice actor Mel Blanc was also an active CB operator, often using "Bugs" or "Daffy" as his handle and talking on the air in the Los Angeles area in one of his many voice characters. He appeared in an interview (with clips having fun talking to children on his home CB radio station) in the "NBC Knowledge" television episode about CB radio in 1978. Similar to Internet chat rooms a quarter-century later, CB allowed people to get to know one another in a quasi-anonymous manner. Originally, the U.S. had 23 CB channels; the 40 channel band plan was implemented in 1977. Two more channels between 22 & 23, commonly referred to as 22A & 22B, were available. Several people had 22A, but few had 22B. In the early 1970s Radio Shack sold a "base station" CB radio that contained a crystal for each of the 23 channels, two extra slots existed, and one could order the 22A & 22B crystals for an easy plug-in. Channel 9 was officially reserved for emergency use by the FCC in 1969.