Haha!!!Now you got me!!!
This is one that I don't know... if you can tell me, it will be another one that I'll know...
Just to make sure that I am not kidding, here are some of the starting years ( I said dates, but I really meant YEARS ) that I know by memory, of the start of public broadcasting in many countries ( it doesn't mean that they didn't had experimental transmissions before those dates ):
Great Britain - 1936
USA - 1939
France- 1947
Brazil, Mexico, and Cuba - 1950
USSR and Argentina - 1951
East Germany - 1952
Japan and Venezuela - 1953
Italy - 1954
Uruguai, Australia, and Spain - 1956
Portugal - 1957
Austria and Switzerland - 1958
Egypt - 1960
Ethiopia - 1964
Israel - 1967
South Africa - 1975