user: Question: What is the smallest timeslot rank when the rating is smaller than 2.6?
Columns: ['Episode', 'Rating', 'Share', 'Rating/share (18-49)', 'Rank (Timeslot)', 'Rank (Night)']
Types: ['real', 'real', 'real', 'text', 'real', 'real']
Sample row: [1.0, 3.9, 7.0, '2.6/8', 2.0, 5.0]
SQL:

assistant: SELECT MIN("Rank (Timeslot)") FROM "Table" WHERE "Rating" < 2.6;