Please answer a question about the following article about High-definition television:

In 1949, France started its transmissions with an 819 lines system (with 737 active lines). The system was monochrome only, and was used only on VHF for the first French TV channel. It was discontinued in 1983.

What country started transmissions using and 819 line system in 1949?
France
Svara gärna på en fråga om följande artikel om HD-TV: År 1949 startade Frankrike sina sändningar med ett 819 linjer system (med 737 aktiva linjer). Systemet var endast monokromt, och användes endast på VHF för den första franska TV-kanalen. Den lades ner 1983. Vilket land började sända med hjälp av och 819 med ledningssystem 1949?
Please answer a question about the following article on HD TV: In 1949 France started its broadcasts with an 819 lines system (with 737 active lines). The system was only monochrome, and was only used on VHF for the first French television channel. It was discontinued in 1983. Which country started broadcasting using and 819 with management systems in 1949?
Frankrike
France