CREATE TABLE table_8391 ("Country" TEXT, "Title" TEXT, "Network" TEXT, "Games" TEXT, "Date aired" TEXT)

Which network had unknown games and a title of hvem kan sl ylvis hvem kan sl aamodt & kjus?
SELECT "Network" FROM table_8391 WHERE "Games" = 'unknown' AND "Title" = 'hvem kan slå ylvis hvem kan slå aamodt & kjus'
SELECT "Network" FROM "table_8391" WHERE "Games" = 'unknown' AND "Title" = 'hvem kan slå ylvis hvem kan slå aamodt & kjus'