I've been using my old 32" TV at 1360x768 (or something like that) for years. My friends had to tell me if a drop was something I needed or not because I couldn't read the item description on drops. I was thrilled when they let you change the font for tooltips, etc., but I still strain to read the quest journal, and mostly just guess at words. (Luckily, I have patient, tolerant group members read my quest journal for me....although that's of no help when soloing.)
It's more of a problem now though, because I want to play on my smaller (27" maybe?) TV at 1920xwhatever. Because of the adjustable font sizes elsewhere, I can read everything but the quest journal. I can't even guess at words it's so small
Years ago I downloaded a UI from here that someone had made for playing on TVs, and I was assuming that so many people needed it that there would be a new one. So I logged on here and searched...but just found this post.