user: Question: What station was owned since 2011, and a channel (tv/rf) of 27?
Columns: ['City of license /Market', 'Station', 'Channel ( TV / RF )', 'Owned Since', 'Affiliation']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Phoenix', 'KNXV-TV', '15 (15)', 1985.0, 'ABC']
SQL:

assistant: SELECT "Station" FROM "Table" WHERE "Owned Since" = 2011.0 AND "Channel ( TV / RF )" = '27';