Its nucleus' value $800 answer 4 round Double Jeopardy! Show_number 5406 category THEY DID IN 2000 air_date 2000-10-30 question 'The Navy apologized for blaming this battleship's gun turret explosion on this show' value $200 answer railroads round Final Jeopardy! Show_number 3173 category HOT DATES air_date 2001-04-30 question 'Grandpa on \The Shield\' value $600 answer Norway round.