Short answers, pulled from the story.
Lew Grade was born on the 25th of December 1906 in Tokmak, in the Taurida Governorate of the Russian Empire, now part of Ukraine. His birth name was Lev Isaakovich Winogradsky. His family emigrated to London in 1912, settling on Brick Lane in the East End.
The name Lew Grade originated as a typing error by a Paris reporter who mistyped "Louis Grad," Grade's professional stage name at the time. Grade liked the misspelling and chose to keep it as his permanent name.
Lew Grade was a founding figure of the Incorporated Television Company, known as ITC Entertainment, established in 1954. ITC became a subsidiary of Associated Television (ATV) and produced internationally distributed series including The Saint, Thunderbirds, and The Prisoner.
Lew Grade offered Jim Henson the opportunity to produce The Muppet Show in Britain after American networks rejected the project. The series was recorded at ATV Elstree Studios and first aired in 1976, running until 1981.
A succession of costly box-office failures, led by Raise the Titanic (1980), which cost $36 million to produce and returned only $8 million in rentals, severely weakened Grade's position. In 1982, Robert Holmes a Court acquired control of the Associated Communications Corporation and dismissed Grade along with his entire staff.
Lew Grade died of heart failure on the 13th of December 1998 in London, aged 91, and was buried at the Liberal Jewish Cemetery in Willesden. He had been knighted in 1969 and was created a life peer as Baron Grade of Elstree in the County of Hertfordshire on the 22nd of June 1976.