CREATE TABLE table_17270 ("Series #" FLOAT, "Season #" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Musical guest and song" CLOB, "Original air date" CLOB, "Production code" CLOB)

How many episodes were titled 'Man's best friend'?
SELECT COUNT("Directed by") FROM table_17270 WHERE "Title" = 'Man''s Best Friend'
SELECT COUNT("Directed by") FROM "table_17270" WHERE "Title" = 'Man''s Best Friend'