DirecTV Genie User Manual page 56

PLAYLIST
Keep
If you have a program you would like to prevent from being
automatically deleted when your disk is full, highlight the show
you want to keep and press ENTER on your remote. A blue, K icon
will appear next to the program title indicating it will be kept until
you delete it. You may be tempted to make all of your recordings
Keep Until I Delete, but if your hard drive reached capacity, new
recordings will not be possible.
Another way to manage your Playlist is to delete recordings you
no longer want.
Delete
Highlight a single show or a series (indicated by a folder icon)
and press the RED button to delete it. If you delete a folder,
all episodes of that series will be deleted. Don't worry about
pressing the RED button accidentally. You will always see a
confirmation message before you delete anything.
Note that HD programs take up more disk space than standard
definition (SD). So, you may want to record your favorite content in
HD, while recording other shows in SD to optimize your use of the
available recording capacity.
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