No you will not need a separate Set top box.
You will however, need to get a cable card from verizon to enable this tuner to work. There is a $3.95 charge (as of this writing) for that cable card "rental."
Please note that you will not get access to pay per view or VOD functions with a cable card/QAM tuner. You will be required to have a STB for those features.
Written by Richard D- FiosFAQ
Last updated on 10.08.06