Question: Who did the play-by-play when the pregame host was Brian Williams and the sideline reporters were Steve Armitage and Brenda Irving?
Schema: create table table_17628022_2 (play_by_play varchar, pregame_host varchar, sideline_reporters varchar, PRIMARY KEY (play_by_play))
SQL: select play_by_play from table_17628022_2 where pregame_host = "brian williams" and sideline_reporters = "steve armitage and brenda irving"