The Netherlands have been in the semi-finals twice, once in 1974, and the other time in 1978.
In the semifinals there is 7 rounds, but which ever team wins 4 rounds first is who can move on.
4 times
they have entered 23 times
3, twice they won it 34 and 50
They entered the Olympics with 57 times.
three times
57 times
Lots
4
Yes, The Netherlands have won Eurovision 4 times.
12
4