CREATE TABLE table_19908 ("Series Ep." TEXT, "Episode" FLOAT, "Segment A" TEXT, "Segment B" TEXT, "Segment C" TEXT, "Segment D" TEXT)

What episode number is the episode with a segment on thinning shears?
SELECT MIN("Episode") FROM table_19908 WHERE "Segment A" = 'Thinning Shears'
SELECT MIN("Episode") FROM "table_19908" WHERE "Segment A" = 'Thinning Shears'