Who was the semi-final television commentator when the spokesperson was Colin Berry and the final television commentator was Pete Murray?
create table table_17766232_7 (semi_final_television_commentator varchar, spokesperson varchar, final_television_commentator varchar, PRIMARY KEY (semi_final_television_commentator))
select semi_final_television_commentator from table_17766232_7 where spokesperson = "colin berry" and final_television_commentator = "pete murray"