What should next season’s materials line be?

These look like block totals with no label. They are excluded from totals by default. Keep a row if it is a real purchase.

These rows had an amount but no date. Every other dated row in the same block fell in one season, so we counted these there too.

These rows had an amount but no date, in a block that spans two seasons. Choosing one would be guessing, so they are held out of every season total.

These labor rows have a cost but no hour count. They are counted in the money totals and excluded from every hours-per-show and hours-per-build average.