Once upon a time our TiVO was quite responsive - now there are increasing delays doing anything outside of playing a recorded programme. This seems to have got noticeably worse over the last few weeks - compared to my sister-in-law's Sky box it's very much a Tortoise v Hare race - the Sky box is WAY quicker. Seems to me that either updates to the system have brought it to a crawl or it's doing a heck of a lot more talking back to VM before any requested operation. Catch up, search etc is all but unusable, to the point where it's quicker & much more reliable to download a programme & watch it off a usb hard drive on the tv. VM - you are in great danger of making the TiVO redundant at this rate. Our Samsung tv's apps (IPlayer, Youtube etc) are far more responsive than the dogs-dinner TiVO offering.
We use the TiVO a lot & it's getting difficult to defend against my wife's insistence that we look to change suppliers.