Short answers, pulled from the story.
Radio City Music Hall opened on the 27th of December 1932. The opening night ran from 8 p.m. until 2 a.m. and was widely panned by critics, prompting the theater to convert from live variety shows to films within two weeks.
Radio City Music Hall was designed by architect Edward Durell Stone and interior designer Donald Deskey in the Art Deco style. Stone designed the facade using Indiana limestone, while Deskey won a competition of 35 submissions to create the custom interiors using glass, aluminum, chrome, bakelite, and leather.
Annual attendance had fallen to 1.5 million by 1977, a 70 percent drop from the 5 million visitors in 1968, and the theater had lost $2.3 million that year. Rockefeller Center president Alton Marshall announced it would close on the 12th of April 1978. It was saved after more than 100,000 people supported landmark designation, the New York City Landmarks Preservation Commission designated the interior a city landmark, and the Urban Development Corporation agreed to keep it open on that same April 12 deadline.
Radio City Music Hall hosted the premieres of more than 650 movies, according to the New York Daily News. Notable premieres included King Kong in 1933, Breakfast at Tiffany's in 1961, To Kill a Mockingbird in 1962, Mary Poppins in 1964, The Jungle Book in 1967, and The Lion King in 1994.
Radio City Music Hall has around 5,960 seats. Approximately 3,500 seats are at the ground-level orchestra, with the remaining seats distributed across three mezzanines. The 1999 renovation installed 5,901 new seats upholstered in salmon-colored fabric.
The Radio City Christmas Spectacular is an annual Christmas stage musical produced by MSG Entertainment, which operates the theater. It has been a New York Christmas tradition since 1933 and features the Rockettes, the women's precision dance team headquartered at Radio City Music Hall.