[svandamme]

no video at hand, but it's pretty easy

unclip the latches
pop the front out
move the front over the support
the back end will now fall out on the headrests
grab hold of it , and let it slide behind your seats

under 10 seconds

getting it back up
grab the edge of the roof inbetween the seats
rais and stretch your arm
pull it so it ends up with back end on headrests
grab it with both hands on each side ( easier with windows rolled down)
wach the back pins in their holes
pull down the roof on the latches
from the inside, pull down and secure latches

30 secs ( quicker is possible, but frequent practice is required)

EDIT
it might not work if your a 2meter15 basketball player or have your seat all the way to the back