Definitions include: the cleft between the cheeks of the buttocks. Definitions include: the pressing of one's unclothed buttocks against a window. Definitions include: so large (or possessing such large buttocks) that one cannot fit in the seats in the coach section of an airplane.
The very first commercially available televisions were seen in the UK in 1928 / 1929. The coincided with the first public television broadcasts made.
It was more than a decade before televisions were made and sold commercially. In 1939, RCA began producing a commercially viable product and this represented the first widely available television. In the UK, broadcasting began in 1929 using John Logie Baird's electro-mechanical system first demonstrated in 1925.