The name of the Finnish town of Lahti appeared on the dials of radio sets in most European countries in the 1930s. Lahti is situated in central Finland, and after a private radio station began transmission there in 1924, it was chosen by the Finnish Broadcasting Corporation, established in 1926, to be the location of its central transmission station, which became one of the most powerful in Europe. The town became celebrated for the steel lattice aerial masts that were dominating feature of the landscape. Television transmissions from Lahti began in 1958, and while there have been many changes in the ways in which radio and television programmes are transmitted, the station and many of the masts remain in use. The museum displays show the development of radio and television technology through the 20th century and into the 21st. The development of receivers is explained with relevant examples, but there is a much larger collection available for research purposes. Components such as valves which are no longer manufactured are also displayed. The museum offers a wide range of activities. It is possible to listen to old radio broadcasts and to watch clips from historic television programmes. Visitors can see a sound effects studio, and the make-up and costume department of a television studio, as well as a set for a television drama. The DX listening station provides opportunities to listen to current broadcasts from all over the world.