CREATE TABLE table_26546 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" FLOAT)

What is the production code for the episode that originally aired on January 8, 1993?
SELECT MAX("Production code") FROM table_26546 WHERE "Original air date" = 'January 8, 1993'
SELECT MAX("Production code") FROM "table_26546" WHERE "Original air date" = 'January 8, 1993'