Grass Valley iTX Desktop v.2.6 - Manual (Page 172)

The Schedule Grid
Automatic replacement of missing media files with evergreen content
There may be video-clip events in a live schedule that iTX cannot play out because the required
media file is unavailable. To prevent blank intervals of transmission, your system administrator
may configure your iTX system to automatically replace any video-clip event that has a missing
media file.
iTX adds a sequence in place of the event; it inserts media files from a standby set of media files
into the sequence. The standby files contain generic content which is considered to be suitable
for transmission during the period of the schedule; such content is often described as
evergreen.
In the Schedule Grid illustrated below, the media item for the "Unknown clip" schedule event is
missing:
iTX automatically replaces the missing media file with a sequence containing evergreen
content:
The duration of the evergreen sequence does not exceed the duration of the original schedule
event. If iTX cannot fill the duration of the schedule event exactly with evergreen content, it
displays the off-air slide for gaps longer than 1 second; otherwise, it holds the last frame of the
sequence on a freeze.
By default, the time at which iTX makes the change to the schedule is related to the duration of
the event that is to be replaced: the interval between the time of the schedule change and the
start time of the event equals the duration of the event. Your system administrator may
configure this interval to be a fixed length instead; i.e. not based on the event duration.
If the media file in the schedule event becomes available before the start time of the event, you
may delete the sequence and re-insert the original schedule event.
About VTR events in the Schedule Grid
When the current schedule includes a VTR event (a video-clip event with a videotape location),
iTX displays instructions for playing out the event in the Schedule Grid. You add the Error
Details column to the Schedule Grid to view these instructions. More details , page 142.
Cue the VTR event
Before iTX can play out a VTR event, you need to cue the event. To do this, you use the
Selected Item Control.
March 2015 iTX Desktop: Operator Manual 152