I have a Roamio, and am having a random video issue. The bottom 25% of the screen is scrambled. It actually looks like it blending a previous feed. For example. I am watching a recorded basketball game on from ESPN. The bottom 25%, basically just above where the score is displayed, has an image from "the studio" update. It is a split screen of two people talking.
However, if I fast forward it, I get a clear image, while fast forwarding. I jumped to live TV, on the same channel, and the feed is clear on there.