Most of you may not have heard about him, but he was the world’s longest-running presenter of a single television show: the Sjy at Night, which give most people their first glimpse of astronomy. It first started in 1957 and he was still going until recently.
He was also known for being the "Gamesmaster", in the series of the same name, which for a lot of kids was the first fun show on TV for video games.
He will definitely be missed, xylophone playing and all.