Sky boxes are a type of television set-top box that allow users to access digital satellite television services. They are typically used in conjunction with a satellite dish and a television set, and are often used to access subscription-based services such as pay-per-view movies and sports events. The term 'sky boxes' is derived from the fact that they are often used to access satellite television services provided by Sky, a British satellite television provider. The crossword solution for the term 'sky boxes' is 'kites', referring to the fact that the satellite dishes used to access these services resemble kites.