Why is this one of my favourite CSI episodes? Black Sabbath and a hometown reference: Conrad Ecklie and D. B. Russell are watching Sabbath in concert. Ecklie comments that he saw Black Sabbath - in Philly, at the Spectrum, in '78 - the very same concert I saw Black Sabbath in concert (first time I saw Van Halen live, too). The entire plot could have been ghastly, but who cares, the nostalgia alone rates the top episodes list for me.