Table schema:
CREATE TABLE table_name_96 (episode INTEGER, performer_4 VARCHAR, performer_1 VARCHAR)

Question: What is the sum of the episodes where chip esten was the 4th performer and jim meskimen was the 1st performer?
SQL: SELECT SUM(episode) FROM table_name_96 WHERE performer_4 = "chip esten" AND performer_1 = "jim meskimen"