user: ### NOW ANSWER:
Question: With a Season premiere of 23 July 2008 this show has what as the average episode?
Columns: ['Season', 'Episodes', 'Season premiere', 'Season finale', 'Peak Series rating[ citation needed ]', 'Average series rating', 'DVD release date', 'Discs']
Types: ['text', 'real', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['Telemovie & Season 1', 23.0, '11 May 1996 (telemovie); 8 August 2001 (series)', '20 March 2002', '1.9 million viewers', '1.85 million viewers', '10 September 2003', 6.0]
SQL:

assistant: SELECT AVG("Episodes") FROM "Table" WHERE "Season premiere" = '23 July 2008';