Whenever I've been to a wine-tasting event, the hosts were never dressed like this, and they were much more serious. Mind you, these two seem to be pouring for themselves and ignoring us. You can't buy Italian Swiss Colony wine anymore, but you can see the old advertisement and jingle on Youtube.
Italian Swiss Colony was one of the most visited wineries in California back in its day. Today it is known as Cellar No. 8 at Asti Winery.
here. Here's another rather dull card of the winery from the 1940s: