user: Question: What signal quality does the KCAL-DT channel have?
Columns: ['Translator Call Letters', 'B Mountain Channel', 'Laurel Mountain Channel', 'PSIP', 'Station Call Letters', 'Network Affiliation ID', 'Original Channel', 'Signal Quality']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['K02HY', '2', 'N/A', 'N/A', 'KCBS', 'CBS', '43.1, Los Angeles', 'Good']
SQL:

assistant: SELECT "Signal Quality" FROM "Table" WHERE "Station Call Letters" = 'KCAL-DT';