CREATE TABLE table_29635 ("#" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Viewers" FLOAT, "Original airdate" CLOB, "Prod. code" FLOAT)

What is the original air date of the episode with 908000 viewers?
SELECT "Original airdate" FROM table_29635 WHERE "Viewers" = '908000'
SELECT "Original airdate" FROM "table_29635" WHERE "Viewers" = '908000'