CREATE TABLE table_19903 ("Series Ep." TEXT, "Episode" FLOAT, "Netflix" TEXT, "Segment A" TEXT, "Segment B" TEXT, "Segment C" TEXT, "Segment D" TEXT)

What is the netflix episode number where Segment D is high-performance engines?
SELECT "Netflix" FROM table_19903 WHERE "Segment D" = 'High-Performance Engines'
SELECT "Netflix" FROM "table_19903" WHERE "Segment D" = 'High-Performance Engines'