Some context: Dangerfield was born in Babylon, in Suffolk County, Long Island, New York. He was the son of Jewish parents, Dorothy "Dotty" (Teitelbaum) and the vaudevillian performer Phil Roy (Phillip Cohen). His mother was born in Hungary. Dangerfield's father was rarely home; Rodney would normally see him only twice a year.
On Sunday, March 5, 1967, The Ed Sullivan Show needed a last-minute replacement for another act, and Dangerfield became the surprise hit of the show.  Dangerfield began headlining shows in Las Vegas and continued making frequent appearances on The Ed Sullivan Show. He also became a regular on The Dean Martin Show and appeared on The Tonight Show a total of 35 times. One of his quips as a standup comedian was, "I walked into a bar the other day and ordered a drink. The bartender says, 'I can't serve you.' I said, 'Why not? I'm over 21!' He said, 'You're just too ugly.' I said as always, 'Boy I tell you, I get no respect around here'." The "no respect" phrase would come to define his act in the years that followed.  In 1969, Rodney Dangerfield teamed up with longtime friend Anthony Bevacqua to build the Dangerfield's comedy club in New York City, a venue he could now perform in on a regular basis without having to constantly travel. The club became a huge success, and has been in continuous operation for nearly 50 years. Dangerfield's was the venue for several HBO shows which helped popularize many stand-up comics, including Jerry Seinfeld, Jim Carrey, Tim Allen, Roseanne Barr, Robert Townsend, Jeff Foxworthy, Sam Kinison, Bill Hicks, Rita Rudner, Andrew Dice Clay, Louie Anderson, Dom Irrera and Bob Saget.  His 1980 comedy album, No Respect, won a Grammy Award. One of his TV specials featured a musical number, "Rappin' Rodney", which would appear on his 1983 follow-up album, Rappin' Rodney. In December 1983, the "Rappin' Rodney" single became one of the first Hot 100 rap records, and the associated video was an early MTV hit. The video featured cameo appearances by Don Novello (aka Father Guido Sarducci) as a last rites priest munching on Rodney's last meal of fast food in a styrofoam container and Pat Benatar as a masked executioner pulling a hangman's knot. The two appear in a dream sequence where Dangerfield is condemned to die and doesn't get any respect, even in Heaven, as the gates close without his being permitted to enter.
Did he become permanent on the Ed Sullivan Show?
A: Dangerfield began headlining shows in Las Vegas and continued making frequent appearances on The Ed Sullivan Show.

Some context: Sir Julian Sorell Huxley FRS (22 June 1887 - 14 February 1975) was a British evolutionary biologist, eugenicist, and internationalist. He was a proponent of natural selection, and a leading figure in the mid-twentieth century modern synthesis. He was secretary of the Zoological Society of London (1935-1942), the first Director of UNESCO, a founding member of the World Wildlife Fund and the first President of the British Humanist Association. Huxley was well known for his presentation of science in books and articles, and on radio and television.
In the early 20th century he was one of the minority of biologists who believed that natural selection was the main driving force of evolution, and that evolution occurred by small steps and not by saltation (jumps). These opinions are now standard.  Though his time as an academic was quite brief, he taught and encouraged a number of evolutionary biologists at the University of Oxford in the 1920s. Charles Elton (ecology), Alister Hardy (marine biology) and John Baker (cytology) all became highly successful, and Baker eventually wrote Huxley's Royal Society obituary memoir.  Perhaps the most significant was Edmund Brisco Ford, who founded a field of research called ecological genetics, which played a role in the evolutionary synthesis. Another important disciple was Gavin de Beer, who wrote on evolution and development, and became Director of the Natural History Museum. Both these fine scholars had attended Huxley's lectures on genetics, experimental zoology (including embryology) and ethology. Later, they became his collaborators, and then leaders in their own right.  In an era when scientists did not travel so frequently as today, Huxley was an exception, for he travelled widely in Europe, Africa and the United States. He was therefore able to learn from and influence other scientists, naturalists and administrators. In the US he was able to meet other evolutionists at a critical time in the reassessment of natural selection. In Africa he was able to influence colonial administrators about education and wild-life conservation. In Europe, through UNESCO, he was at the centre of the post-World War II revival of education. In Russia, however, his experiences were mixed. His initially favourable view was changed by his growing awareness of Stalin's murderous repression, and the Lysenko affair. There seems little evidence that he had any effect on the Soviet Union, and the same could be said for some other Western scientists.  "Marxist-Leninism had become a dogmatic religion... and like all dogmatic religions, it had turned from reform to persecution."
What did Huxley believe?
A:
natural selection was the main driving force of evolution,