 In 2014 , the hardware and software behind the fountain 's operation were replaced . At the time there were plans to replace LED lighting with incandescent bulbs on each of the non @-@ video display surfaces and to replace the video surface LEDs . Plensa , who maintained control of the video faces for the first two years of the fountain 's operation , understands that future generations may wish to update the faces used in the rotation of videos to reflect changes in humanity going forward . In 2014 , an additional 1000 faces were anticipated for 2016 . 
 In 2014 , the hardware and software behind the fountain <a href='null_genetive' title='1'><mark>'s</mark></a>operation <a href='uninflect' title='2'><mark>were</mark></a> replaced . At the time <a href='dey_it' title='3'><mark>there</mark></a> <a href='uninflect' title='4'><mark>were</mark></a> plans to replace LED lighting with incandescent bulbs on each of the non @-@ video display surfaces and to replace the video surface LEDs . Plensa , <a href='null_relcl' title='5'><mark>who</mark></a>maintained control of the video faces for the first two years of the fountain <a href='null_genetive' title='6'><mark>'s</mark></a>operation , <a href='uninflect' title='7'><mark>understands</mark></a> that future generations may wish to update the faces used in the rotation of videos to reflect changes in humanity going forward . In 2014 , an additional 1000 faces <a href='uninflect' title='8'><mark>were</mark></a> anticipated for 2016 . 
In 2014 , the hardware and software behind the fountain  operation was replaced . At the time it was plans to replace LED lighting with incandescent bulbs on each of the non @-@ video display surfaces and to replace the video surface LEDs . Plensa , maintained control of the video faces fir da first two years of tdafountain  operation , understand dat future generations may wish to update thdaaces used in the rotation of videos to reflect changes in humanity going forward . In 2014 , an additional 1000 faces was anticipated for 2016 .