I've been a Tablo/Roku user for a few weeks now. I didn't have time to read through all the posts here to see if these enhancements have already been asked for, so please forgive any duplication.
1.Tablo/Roku Guide - scroll from A-Z directly. Roku remote up arrow key should go from A > Z instead of having to scroll down through the entire alphabet.
Search through the guide, show results based on category All, Prime Time, Sports etc.
Tablo to play movies through Roku from external sources, DLNA, NAS etc.