CREATE TABLE table_24305 ("Episode number" FLOAT, "Total episodes" FLOAT, "Title" TEXT, "Original UK broadcast by" TEXT, "Original UK airdate" TEXT, "DVD reference" TEXT)

When did 'Granny Pig's Chickens' first air?
SELECT "Original UK airdate" FROM table_24305 WHERE "Title" = 'Granny Pig''s Chickens'
SELECT "Original UK airdate" FROM "table_24305" WHERE "Title" = 'Granny Pig\'s Chickens'