CREATE TABLE table_17628022_2 (play_by_play VARCHAR, pregame_host VARCHAR, sideline_reporters VARCHAR)
Who did the play-by-play when the pregame host was Brian Williams and the sideline reporters were Steve Armitage and Brenda Irving?
SELECT play_by_play FROM table_17628022_2 WHERE pregame_host = "Brian Williams" AND sideline_reporters = "Steve Armitage and Brenda Irving"