I recently changed from DirecTV to a FiOS bundle to save money on my home phone and Internet. I have a 65GT30 calibrated by D-Nice. The picture is stunning. FiOS will let you display content in 720P or 1080i from the box, but does not have a native setting. I leave it at 1080i. The tv then converts as needed. The HD content is very good. I would say better than DirecTV, but not by much. The SD content appears a bit fuzzy, but watchable. On a 65 inch tv, you are going to see everything. I also have a 42X3 and it actually displays SD content a bit better. I assume it is because of the smaller screen size. The other good thing about FiOS is my Internet speed of 35 up and down. It steams Netflix perfectly, as well as my iTunes content over my ATV3. Hope this helps?