[nicko]

When you have a power outage TiVo resumes recording once power is restored and importantly saves the bit that's already recorded in a folder, so after you will find 2 parts (before/after outage) of the recording My shows.

BTW. On Sky Plus you will lose the whole recording upto power outage down a big black hole ( never to be seen again), all you get is what came after the outage.( Beats Sky plus hands down)