I see this has been discussed before. Sorry if I am beating a dead horse, so to speak. But I want to add my own 2 cents worth.
I have been a Tablo user for something like 6 or 7 months, and my 6TB hard drive is about half full, after I have pruned out a lot of rubbish. That still leaves a lot of stuff on that disc. And looking thru the lot to find a show, well is time consuming and frustrating. To that problem a couple of things would be nice: (a) a better search function (on my Android tablet, the search function does not work, at all, for recordings), and (b) a list of recently watched programs… call it “Continue Watching…” or something like that.
The search function works great when looking for a program to record (searching the guide data), but searching thru actual recordings does not seem work (for me anyhow). If it works the same on Roku, which I have not tried, but intend to… well then that would need fixing too.
With such a large number of recorded shows, it is difficult to find a show, or sometimes even remember which shows you were watching. My Tivo doesn’t do this either, so Tablo would have a leg-up on the competition if they had it. Netflix and other online streamers seem to all have it, as far as I can tell anyways… I find it very nice. Also, the online streamers and the Tivo both have very good search features.