It was already bad enough, the kludgy UI that didn't even qualify for GUI, where moving through the channel selections was less like surfing and more like creeping up and down with a walker and orthopedic shoes.
Now, without improving a thing, Comcast has added on-screeen ads at the bottom of each guide screen. Not only that, as you scroll through the ads, the cursor ends up including the ads in the sequence, making it that much harder to go through the guide.
Digital cable is now that much less usable. Just lovely.