CREATE TABLE table_30968 ("Episode" FLOAT, "Broadcast date" TEXT, "Guest ( s ) " TEXT, "Singer ( s ) " TEXT, "Ratings" TEXT)

when was the episode guest starring michael mcintyre and alex james broadcasted
SELECT "Broadcast date" FROM table_30968 WHERE "Guest(s)" = 'Michael McIntyre and Alex James'
SELECT "Broadcast date" FROM "table_30968" WHERE "Guest(s)" = 'Michael McIntyre and Alex James'