SELECT AVG(episode) FROM table_name_74 WHERE performer_1 = "greg proops" AND performer_3 = "ryan stiles" AND date = "25 august 1995"
Pelaku 1 dari Greg Proops, dan pemain 3 dari Ryan Stiles, dan tanggal 25 Agustus 1995 adalah episode rata -rata yang mana?
CREATE TABLE table_name_74 (episode INTEGER, date VARCHAR, performer_1 VARCHAR, performer_3 VARCHAR)