Table schema:
CREATE TABLE table_17766232_7 (semi_final_television_commentator VARCHAR, spokesperson VARCHAR, final_television_commentator VARCHAR)

Question: Who was the semi-final television commentator when the spokesperson was Colin Berry and the final television commentator was Pete Murray?
SQL: SELECT semi_final_television_commentator FROM table_17766232_7 WHERE spokesperson = "Colin Berry" AND final_television_commentator = "Pete Murray"