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.
See today's choices.
(Stereo)
Prizes on offer to celebrate BBC TV's 60th anniversary: see page