Two households in Caerphilly County Borough are still exclusively using black and white television sets, TV Licensing has revealed.
Across Wales, a total of 242 households have a black and white TV licence, compared to 6,586 across the UK.
The data was published to mark the 50th anniversary of colour on BBC One.
A black and white TV licence is needed to watch live television or use BBC iPlayer on a black and white monitor, but a full licence is needed to download content from iPlayer or to record live television.
Helen Wild, spokesperson for TV Licensing Wales, said: “Whilst only accounting for a very small proportion it’s interesting to know that some households still like to watch their favourite shows on a black and white telly.”