Original: In 1927, Baird transmitted a long-distance television signal over 438 m of telephone line between London and Glasgow; Baird transmitted the world's first long-distance television pictures to the Central Hotel at Glasgow Central Station.
Simplified: In 1927, Baird made a signal go over 438 m between London and Glasgow; Baird sent the world's first long-distance television pictures to the Central Hotel at Glasgow Central Station.