More than half of LPS teachers add to their salaries with extra duties such as teaching summer school, sponsoring after-school clubs, coaching or putting on plays. While nearly 12 percent of teachers make $10,000 or more in extra pay, the rest make much less.
The first demonstrations of television in the US were in 1928 by Philo Farnsworth. It was more than a decade before televisions were made and sold commercially. In 1939, RCA b â¦ egan producing a commercially viable product and this represented the first widely available television.
Before joining PBS in 1970, KET was a member of its predecessor, National Educational Television, for its first two years of operation. The first instructional television (ITV) program produced by KET was Kentucky is My Land, which premiered in late 1968.