Hi! This has been happening for a few weeks (and has continued through a tech visit, unfortunately.) It seems to only be happening on HBO channels, and only at the end or beginning of a program when the screen is showing text of some kind (like end credits of a movie, or the beginning screen that tells you what the upcoming movie is rated, that kind of thing.) The picture "freezes" on the screen, although in the background the audio continues as usual, and it will stay like that until you change the channel to something else and then back again, at which point things continue as usual. Anyone have any idea what would be the cause of something like this?