CREATE TABLE table_1250 ("No. in series" TEXT, "No. Disc" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Length  ( minutes ) " FLOAT)

Name the minimum number disc for number in series for 14
SELECT MIN("No. Disc") FROM table_1250 WHERE "No. in series" = '14'
SELECT MIN("No. Disc") FROM "table_1250" WHERE "No. in series" = '14'