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);