I have been a subscriber to Verizon Fios for a week now and there is an obvious difference in picture quality for Showtime Anytime (which is new to me as I didn't subscribe to Showtime with my previous provider) and Netflix and HBO GO (which I have used for about two years). With Showtime Anytime there are two problems: 1) There is a jagged look to objects and people instead of a smooth look. In gaming this is called "jaggies" I believe and is solved with the anti-aliasing settings of the game. 2) There is a ever slight (but noticible) strobe-like effect that means that that the frame rate is too low. The sound is fine.
Netflix and HBO GO playback is outstanding and my internet speed is super fast now (58 MBPS down). There is an optional driver update for my graphics card, NVIDIA Geforce GTS 240 (I don't game with it any more). I don't know if a new driver will really change anything with this issue and I tend to leave things alone if they are working.
I don't think this is the fault of Verizon FIOS but I wonder if anyone else has noticed this.
Thank you,
TryBri