The results of pre-election survey on the Slovak RTVS which took place on 7 – 16 February 2016. Only 57% of voters was decided which party to vote.
https://www.rtvs.sk/televizia/archiv/9936/87989
time (6:03 – 10:11)
https://www.rtvs.sk/televizia/archiv/10076/88294
time (2:18 – 15:00)