How this page is built
The page is static: one HTML file, one stylesheet and one script, cached by your browser. The listings come from one call to the pages-demo application, which answers from its own database instead of the warehouse.
One request per day
/endpoints/pages-demo/schedule?day=… returns every airing on all three channels. The next day is fetched in the background, so moving forward is instant.
Posters from the library
Show posters come from the PBS SoCal poster mirror, mounted on this site at /brand/, and load only as they scroll into view. Shows without one get a branded card.
Kept current
pages-demo-sync copies three weeks of Protrack listings every three hours. Protrack is where PBS SoCal schedules its stations, so this is the schedule of record.