It was truly something special seeing Frank Ferrante portray Groucho Marx, particularly for longtime fans of the Marx Brothers like myself. Initially, I had concerns he might deliver a predictable caricature—the sort Bugs Bunny could pull off, or even Alan Alda’s portrayal as Hawkeye Pierce on M*A*S*H*. Those kinds of impressions acknowledge who they're imitating, but don’t feel authentic to Groucho. Nevertheless, Fe…