Subscribe and 🔔 to the BBC 👉 Watch the BBC first on iPlayer 👉 More information: A 300-year-old cello becomes a screen in this unique film. Infrared cameras track the cello’s position allowing a digital projection to stay locked onto its surface as it moves. #bbc All our TV channels and S4C are available to watch live through BBC iPlayer, although some programmes may not be available to stream online due to rights. If you would like to read more on what types of programmes are available to watch live, check the 'Are all programmes that are broadcast available on BBC iPlayer?' FAQ 👉
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