Dean is a professional diver. Elana is a scuba instructor. We're geniuses for hooking ‘em up. Yet true chemistry can be elusive -- so, have these two got it or not? Sneak a peek with Ellen, Greg and tonight's guests, actress LISA ANN WALTER (""Emeril"") and motor-mouthed comic BILL ENGVALL. LOCATION: Long Beach Pier, Yankee Doodle's