The short answer is: NO HD signals available on FiOS cable without using an HD STB. You only get channels under 50 (and the HD channels live much higher)
You can, however, have an external antenna hooked up to the antenna input on your HDTV (assuming that your HDTV has a built in ATSC tuner) which will allow you to also watch OTA (over the air) HDTV programming.
Written by FiosFAQ
Last updated on 09.27.06