Metallica Essentials is a song playlist and not a line of lotions.  Joey visits the dermatologist, trivia still not going well for Tressa BUT the birth of the "Trivia" jingle is born.  So are the trivia guidelines...AND Joey misses his first question (hand claps by Tressa).  The technical information is so important to Joey -seeing he is the musician of the relationship- and Tressa threatens to end the 31 year long friendship based on that.  Does anything really matter after this episode?