Question: What is the original Danish air date of "Episode 17"? 
SQL: SELECT "Original Danish air date" FROM "1-26591309-1" WHERE "Title" = '"Episode 17"';

Question: What were the UK ratings (BBC Four) for "Episode 17"? 
SQL: SELECT MIN("UK ratings (BBC Four)") FROM "1-26591309-1" WHERE "Title" = '"Episode 17"';