Very interesting. I did not pull together all of the symbols in this episode. One item that I'm still struggling with, but have not had time to rewatch the episode, is the picture of Frank's cousin. In the end, he goes to meet his cousin. Jerry Stiller plays the part of the cousin, yet he claims that Frank has the wrong man. Or does he?
As I saw it, Frank finds the man, questions the man in the picture and finds out that he is not his cousin. Did I miss something. Perhaps some indication that the man really is his cousin? In my mind, the fact that the picture got Frank to "Costanza's" in Tuscany, where he meets his long lost cousin, but does not realize it, would be as destructive as the wine on the picture, or the case of 'much better' syrup.