1. Someone else has contributed a Baird Televisor, "the last time a lone inventor working in difficult conditions... could invent something that would change the world.
2. Someone else has contributed a Baird Televisor, "the last time a lone inventor working in difficult conditions… could invent something that would change the world."
3. Someone else has contributed a Baird Televisor, "the last time a lone inventor working in difficult conditions… could invent something that would change the world."
