First colour TV transmission

According to Official Guinness Records,

The world's earliest transmission of colour television occurred on 3 July 1928 when John Logie Baird (UK) showed red and blue scarves, a UK policeman's helmet, a man poking his tongue out, the glowing end of a cigarette and a bunch of roses during a demonstration at his studios in Long Acre, London, UK.
Nature magazine reported: `Delphiniums and carnations appeared in their natural colours and a basket of strawberries showed the red fruit very clearly.' The low definition system was based on a Nipkow scanning-disc with red, blue and green filters.

For a complete list of 1928 records, please visit 1928 Guinness Records in United Kingdom.

Other United Kingdom records that might interest you:

• First reception of TV at sea
• First crossing of the English Channel swimming (female)
• Shortest Test match (male)
• First inflight film
• First presentation of 'lady to be sawn in half' illusion