CREATE TABLE table_28784 ("No." FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Patient Portrayer" TEXT, "Original air date" TEXT, "Production code" FLOAT)

what is the original air date for julie warner?
SELECT "Original air date" FROM table_28784 WHERE "Patient Portrayer" = 'Julie Warner'
SELECT "Original air date" FROM "table_28784" WHERE "Patient Portrayer" = 'Julie Warner'