context: Tesvisio (originally TES-TV) was Finland's first television channel to broadcast in 1955-1965. The channel's roots lie in the trial broadcasts of a cable television television club set up by the Radio Engineers' Society in 1954 to broadcast product demos across Helsinki. The channel was commercial in nature, so it broadcast advertisements and paid programs.
question: What was Tesvisio?
answers.text: Finland's first television channel to broadcast in 1955-1965