Been there...saw the show.
Actually an old Home Time had the product and it worked great for me.
Tassoglas is the stuff. Woven Fiberglass wallpaper basically.
Its popular is Europe where plaster is much more common.
It breathes so the crack can grow and shrink but it no longer shows.
But it does not stretch like wallpaper to hide wavy seams so its a 2-3 person job. You have to line it up perfectly to hide the seams.
Just fill and sand the cracks flush with the rest of the ceiling if they are big. Primer or paint first. Wallpaper glue does not like to stick to bare sheetrock compound.
Use the strongest CLEAR paste you can find. Primer and finish paint as you like.
I ordered it through the wallpaper store. More expensive than normal wallpaper but faster than a replaster! It comes in 3ft widths.
http://www.roosinternational.com/glass_tex...ng/textures.htmFor the fancy job there are beveled sheetrock items that give the large ceiling the "paneled" look. (like a Kitchen cabinet door but larger)
-Rich