CREATE TABLE table_26021 ("Series #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "U.S. viewers  ( in millions ) " TEXT)

What is the original air date of the episode that was directed by David Paymer?
SELECT "Original air date" FROM table_26021 WHERE "Directed by" = 'David Paymer'
SELECT "Original air date" FROM "table_26021" WHERE "Directed by" = 'David Paymer'