This is happening to me as well. Pretty hard to watch a show that replays a series of ads over and over again. Then it goes back to a point in the show that I've already watched. I have adblockplus, but it's disabled. I'm not taking out my anti-virus software and feel like it's inappropriate for xfinity/comcast to expect anyone to want to do this. Maybe I should steal programs just like everyone else.
I don't mind watching a couple 30 second spots, but a 10 minute loop is ridiculous.