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.
(CNN)When The Simpsons debuted in December 1989, it was the perfect thing at the perfect time, according to executive producer Al Jean. You could say, their timing was excellent. Primetime animated TV families had a moment in the '60s, with the likes of The Jetsons and The Flintstones..