In the 1920's.
There wasn't any tv in the 1920s. The first public demonstration was in the 1920s, though, so you can search "first tv ever".
Unless you worked in a TV network, most workplaces did not have TVs, colored or otherwise.
commercial television
Yes colored TVs are better, then old fuzzy ones.
In the 1920s, TV was radio.
Telephone, Television, and Radio
There were several different types of colored TV in the middle fifties (RCA won). Colored wheels verses three guns. There were experimental color TVs before WW II , but they weren't commercially viable.
In 1927.
The television was technically invented by several people including John Logie Baird. A few inventors had different ideas and concepts that were eventually used to invent the first commercial television in the late 1920s.
radio
One technological advance that did not become popular in the 1920s was the television. While early prototypes were developed during this time, it wasn't until the 1950s that television became a common household item.
1965.