CREATE TABLE table_73983 ("Episode" FLOAT, "Title" CLOB, "Original Danish air date" CLOB, "Danish ratings  ( DR1 ) " FLOAT, "Original UK air date" CLOB, "UK ratings  ( BBC Four ) " FLOAT)

What were the UK ratings (BBC Four) for 'Episode 17'?
SELECT MIN("UK ratings (BBC Four)") FROM table_73983 WHERE "Title" = 'Episode 17'
SELECT MIN("UK ratings (BBC Four)") FROM "table_73983" WHERE "Title" = 'Episode 17'