CREATE TABLE table_33242 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Who did Collingwood play at home?
SELECT "Home team" FROM table_33242 WHERE "Away team" = 'collingwood'
SELECT "Home team" FROM "table_33242" WHERE "Away team" = 'collingwood'