The juries are watching another show than the public televoters do, but is the difference of points between them because of two different performances, or is it because that the juries weights other things than the viewers?
Eurovision 2016 results
Most clearly is Poland (8th):
The viewers awarded Michał Szpak from Poland a third place, while the juries placed him 25th! And if the juries were to decide 100% of the result, Poland wouldn't even have qualified to the Grand Final.
Also Israel's votes were mixed (14th):
In Semi-final 2 Hovi Star was the 4th best according to the juries, but the 3rd worst if you asked the public voters.
Malta had succes among the juries (12th):
The juries judged Malta's Ira Losco to be in 4th position, but the public televoters were not so kind: 21st position if the televoters should decide 100%.
Semi-final 2 was actually won by the Grand Final's runner-up Australia. Ukraine came 2nd