user: Question: How many numbers in series were for the number in season of 8?
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by:', 'Original air date']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [135.0, 1.0, '"Causa Mortis"', 'Ed Sherin', 'René Balcer', 'September 18, 1996']
SQL:

assistant: SELECT COUNT("No. in series") FROM "Table" WHERE "No. in season" = 8.0;