Eureka! They're everywhere!
You can tell Larry Jacksina [January 27: "Unlisted: New TV stations off the grid"] that both channel 16 and 19 appear in the online listings provided by Zap2it, tvlistings.zap2it.com.Yes, Seinfeld episode descriptions are included in the WVAW lineup.
Kudos to Zap2it (and their representative Andre Alforque) who added the two channels a few months ago based on my request. Other online listings still do not have the complete Charlottesville line-up.
Note that Zap2it allows you to customize the display, so, if you are cable-less, you can limit the view to our four local broadcast channels.