Two machines. One channel. One winner.

On November 2, 1936, the BBC launched the world's first regular high-definition television service from Alexandra Palace in London. It did it with two rival systems: John Logie Baird's 240-line system and Marconi-EMI's fully electronic 405-line system, which took turns on air week by week.

In February 1937 the BBC dropped Baird's system for good, and electronic television became the standard that followed.

What if the BBC had chosen Baird instead? In The Turning Point we explore two possibilities. They are hypotheses, not history.

Does the best technology always win, or just the one that is chosen first?

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