Hmmmmm. I can see the video fine. Using Firefox 12.0.
Anyway, this is dead easy, just get a sharp knife and think potatoes. As long as you have an eye, i.e. a sprouting bud, on a given piece that will be fine. Just cut through last year's stalk accordingly, keeping a bud and a piece of stalk on each bit.
If you haven't got any buds yet then plant the tubers on the top of a tray of moist compost for a week ot so.
Thanks for the info, still flowering at the mo, will do after.
As long as you're moving before the winter frosts arrive, they should be fine if you water their roots thoroughly and leave it to soak in at least an hour before digging them up. Once in their bags, tie up the tops of the bag as much as possible to reduce water loss to air and also to keep the roots form drying out. If it stays warm and dry, trickle in some extra water for them but don't drown them. Keep them out of the wind till you're ready to plant.
What sort of lilies, Jack?
I would divide daylilies(hemerocallis ) in spring.
True lilies (Lilium species) go down to bulbs, and dont get split as such. Small bulbils can be grown on for a couple of years to form flowering size bulbs.