Signal Box Archive. Word Search Puzzle Solver. Signal Box Archive word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. A unique look inside over 70 signal boxes taken from Video 125's archive filmed over a period of 30 years. Features 'boxes of all shapes and sizes all kinds of operating methods from 19th century mechanical lever frames to 20th century panels to 21st century state-of-the-art Rail Operating Centres. This includes identifying and searching for words that are related to : Jonathan Kydd, Documentary .