CREATE TABLE table_52082 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

When did Collingwood play an away game?
SELECT "Date" FROM table_52082 WHERE "Away team" = 'collingwood'
SELECT "Date" FROM "table_52082" WHERE "Away team" = 'collingwood'