private static IReadOnlyCollection <Break> GetProgrammeBreaks(
DateTimeRange programmeStartEnd,
IReadOnlyCollection <Break> breaks) =>
ProgrammeSpecificDataSet.GetForPeriod(programmeStartEnd, breaks);
private static IReadOnlyCollection <Spot> GetProgrammeSpots(
DateTimeRange programmeStartEnd,
IReadOnlyCollection <Spot> spots) =>
ProgrammeSpecificDataSet.GetForPeriod(programmeStartEnd, spots);