Twenty years ago, writer George R.R. Martin left the television industry because TV executives kept telling him his ideas were too expensive to shoot. So he went home and wrote A Game of Thrones. It was the first novel in an epic fantasy series that's now sold millions of copies and has been made into a hit TV series by HBO ... where executives keep telling him his ideas are too expensive to shoot.
We've invited Martin to take a quiz called Game of Trombones. Three questions about things that rhyme with thrones.