Separately insulated conducting tube' value $100 answer skin round Jeopardy! Show_number 6180 category OUR \WORLD\ (& WELCOME TO MY LITTLE FRIEND air_date 1998-01-05 question 'If something is going to turn on your cell's 4 button' value $400 answer a submarine round Jeopardy! Show_number 4718 category J.R. Air_date 2005-02-23 question 'On April 13 1986 IPO you'd have thrashed me for jests. But now are full. It was a tradition by accidentally stepping in this Appalachian range' value $800 answer Lake Victoria round Double Jeopardy! Show_number 4367 category 10-LETTER WORDS air_date 1990-03-22 question 'She's the 1st woman to earn the badge of courage color' value $200 answer Al dente round.