And just a side note... you do not have to use the HD Zoom button. You can choose whichever button you wish. I personally use the FAV button. Many other use the "Stop" button as it's not really needed for DVR.
I just prefer to use the "HD Zoom" button, because I don't use it. I do however have channels marked as favorites, so the "Fav" does get some use on my remote. -- Zen Buddhism for techies: "Jesus saves, but only Buddah makes incremental backups".