CREATE TABLE table_21832 ("Year" FLOAT, "Network" TEXT, "Play-by-play" TEXT, "Colour commentator ( s ) " TEXT, "Sideline reporters" TEXT, "Pregame host" TEXT, "Pregame analysts" TEXT)

Who were the pregame hosts when the sideline reporters were Steve Armitage and Brenda Irving?
SELECT "Pregame host" FROM table_21832 WHERE "Sideline reporters" = 'Steve Armitage and Brenda Irving'
SELECT "Pregame host" FROM "table_21832" WHERE "Sideline reporters" = 'Steve Armitage and Brenda Irving'