This tab specifies how often this channel as being due for an update.
Mark this channel as due for updates at a certain interval will mark this channel as being due at the interval which you specify below. If this checkbox is unchecked, the due time in the main dialog's channel list will appear as 'Never'.
The interval between updates can be specified with This channel is due for an update every... to specify a number of either hours/days/weeks/months/years to elapse between marking the channel as due for an update.
The interval is paced out from time marked in the Starting on section. Choose a month, year and day, and hour from the calendar controls. Pressing the Now button automatically sets the calendar controls to the current day and hour.