CREATE TABLE table_35331 ("Episode" TEXT, "Title" TEXT, "Writer ( s ) " TEXT, "Preservation" TEXT, "Original airdate" TEXT)

What is the original airdate for episode 7-17 (195) from writer Sidney Slon?
SELECT "Original airdate" FROM table_35331 WHERE "Writer(s)" = 'sidney slon' AND "Episode" = '7-17 (195)'
SELECT "Original airdate" FROM "table_35331" WHERE "Episode" = '7-17 (195)' AND "Writer(s)" = 'sidney slon'