What was the total ITV1 viewers in millions for the episode with a share (%) of 28.9?
create table table_27319183_5 (total_itv1_viewers__millions_ varchar, share___percentage_ varchar, PRIMARY KEY (total_itv1_viewers__millions_))
select total_itv1_viewers__millions_ from table_27319183_5 where share___percentage_ = "28.9"