user: Question: WHich Video has a Channel larger than 56.4?
Columns: ['Channel', 'Video', 'Aspect', 'PSIP Short Name', 'Programming']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [56.1, '720p', '16:9', 'KDOC-HD', 'Main KDOC-TV programming']
SQL:

assistant: SELECT "Video" FROM "Table" WHERE "Channel" > 56.4;