Specify days and times by dragging out a rectangle on the blue grid to show the days and half-hours to be included in a definition.  You can continue to drag rectangles to show additional periods to be included, or to remove some of the periods that had been included.

 

As you proceed, a text version of the definition is also shown.

 

 

Note that U.S. Nielsen defines the after-midnight hours as belonging to the preceding calendar day.  The day starts at 6am, and continues past noon and midnight and up to 6am of the "following" day.

 

 

Time Zones

 

In national data from U.S. Nielsen, everything is standardized to network feed times.  For example, in Nielsen data, as revealed  in TView, prime time starts at 8 pm, period. So, when we want to know what the audience is to, say, NCIS, which comes on at 8pm on Tuesday on CBS, we actually are picking up viewership in Chicago at 7 pm, because that's when NCIS starts there.  In TView when you ask for audiences for, say, Mon-Sunday 8pm to 11 pm, it goes to Nielsen and gets viewing for 8-11 pm.  But that is actually  viewing in Chicago from 7 pm to 10 pm.  And L.A. is on a different network feed altogether, so we also get their prime viewing as 8-11, even though they're three hours behind New York.

 

 

Syndication Is Timeless

 

When a program airs in syndication, each individual local station decides when to broadcast it.  So, a particular program might air at 7:30 pm in New York, but 4 pm in Milwaukee, or 2 pm in Houston.  Since TView uses national television data, programs in that data have no specific time.

 

There is an important consequence.  There is no way to isolate syndicated programs by time of day.  So, if you set up a daypart defined as the group "Syndication" and with any time span, no programs at all will be included, and the daypart will not be included in the finished TVD database.

 

When defining a daypart with the group Syndication, do not also set a time span.