May be I am being a little unfair in my sweeping statement of these episodes. It is just so clear to me that Mr Culp and Mr Cosby were so in tune with each other and at the peak of their game that any woodeness which is natural with bit part players is exaserbated. Having said that I loved the episode An American Empress because the enigmatic France Nuyen was fantastic in it as she was brilliant and engaging in every episode that she starred in. As someone who has yet to see San Francisco these episodes are like a Tourist Brochure of where to go and what to see. Tag your it is a particular favourite of mine because of Scotty and Kelly's hippy disguise and the interaction with each other and the shop owner. On the whole these are definitely not the best I Spy episodes, but because the show was exceptional in every sense of the word this statement of mine is not an inditement on these four episodes which are still very entertaining.