When inventor John Logie Baird's pioneering work came to fruition in November 1936, today's multi-channel satellite era was light years away. This Horizon programme asks whether the latest "improvements" have driven television into a cul-de-sac, and if there are any modern-day innovators to guide the medium into the 21st century.
The aim of Horizon is to provide a platform from which some of the world's greatest scientists and philosophers can communicate their curiosity, observations and reflections, and infuse into our common knowledge their changing views of the universe