user: Question: What is the Date when the Country shows UK, the Format is CD, and the Catalog of EDCD 227?
Columns: ['Date', 'Label', 'Format', 'Country', 'Catalog']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['February 6, 1967', 'Columbia', 'LP', 'US', 'CL 2642']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Country" = 'UK' AND "Format" = 'CD' AND "Catalog" = 'EDCD 227';