[Stephen]

Hi and welcome to the forum,

-The full guide will always start from 100.
-I have been using TiVo for a long time and don't feel it sluggish at all, but if you are used to the way that Sky worked it may well seem slower.
-The miniguide will always revert back to default after a certain amount of time. I usually put mine on HD. Nothing can be done about that though.
-If you go to Settings-Recordings-Default recording options you can change it to New only. However sometimes the info may be incorrect and shows might not be flagged as new in the guide. This is less of a problem now than it used to be.
-Unfortunately, due to the nature of TiVo and it becing designed for recording and storing shows that was the only way that reminders could be implemented. Before VM TiVo didn't have any reminders at all. Also because it has the three tuners it can easily cope with recording multiple recordings.
-On demand does have a big selection of catch up and TV Shows/movies, having never really used Sky though I can't compare. It does stream straight from the servers though and doesn't need to download to the box first which is a benefit.