Incandescent Light Bulb
- Episode aired Feb 11, 2020
Sir David finds out about the invention of the incandescent light bulb as he learns about the British innovations that have transformed our homesSir David finds out about the invention of the incandescent light bulb as he learns about the British innovations that have transformed our homesSir David finds out about the invention of the incandescent light bulb as he learns about the British innovations that have transformed our homes