Hi James
I don't think there are any tips to improve TV Drive, only a firmware upgrade will speed things up and maybe add extra features, why they don't just look at how simple sky's EPG and remote is and copy I don't know.
The only tip I can give James, having had TV Drive for a couple of months, whenever something goes wrong, unplug it for a min or 2, seems to sort most problems. I even do that if I have a load of recordings set, maybe over a weekend and I haven't powered down for a week or so, so it's reset and ready to roll and touch wood will record them.
To me, apart from the deal I got, having 3 tuners is the only '+' from Sky+ ( which I leave set up for the freeview, thank god I did after last Sat!)
Merry Christmas to all
Nick