What percent of families on the TV set by the end of the 1950s

By 1957, Americans were able to watch 450 stations across the U.S. on 37 million TV sets; by 1960, nearly 90% of households had a TV.

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.

answer

the speaker of ,’i want politician to make more of an effort for lgbt rights’, will be served well by joining an interest group.

explanation

an interest group is one that aims at influencing public policy on reasons derived by a common interest .in this case, lgbt rights are rights for the gay society which is a special group of individuals with specific interest concerning their relationship with other individuals. hope this !