Many Fios TV channels can be viewed on your PC, but not all. They have expanded the list before, and with hope they will expand it more.I have found thes to be really cool because available channels you access their on demand content straight from the PC just as if you were at a Verizon STB or DVR.
Go here for On demand of Network channels, and also Live Broadcast, or Current TV Programming. You will need to select your provider and login to get the content. I like HBO Go, Stars Play is another that can be connected even directly to the PC if you have a Verizon account.
http://entertainment.verizon.com/tv/3/landing/
I hope this helps, and is more complete information.