I've maybe had 1 or 2 audio drops or image freezes watching the Euros, but the broadcast is coming from the other side of the world.
I'm getting around five video/audio glitches per minute today. Unwatchable. I can't tell if it's ESPN or Verizon. It happens slightly during the studio segments and commercials, but not nearly as much (and no audio dropouts). Never had a problem with ESPN until this tournament.
For those that are still having the audio issues with FSC HD on FIOS, it has to be Verizon.
Ever since I switched to Comcast at the beginning of July, i've been able to watch FSC HD glitch free using the same HDMI/receiver/TV setup. -- "ONE team - ONE city - ONE dream!!"