nitpick: Frankie Welles is supposed to have a stump for a right hand-- but looking at the distance from his elbow to the tip of his "stump," it is obvious that he is just wearing a leather covering over his hand which is closed as a fist.
Nitpick: when "Cat" breaks into Joseph Reinhoff's mansion, Cat's stunt double looks nothing like him.
nitpick: the credibility of this episode is hurt by the scene of Cat "driving" a stationary car with rear-screen projection for a background.
this is really nitpicky: they put together an introduction, using mainly scenes from the first 2 shows. When the narrator says "a master among jewel thieves," we see a man in black scaling a building-- but that's not Cat, that's the Sandman from episode # 2.
That night, at the penthouse apartment, Cat says he needs the necklace in 12 hours. Since it is around 10 p.m. or so, that means he needs it around 10 a.m. the next day. Although Cat visits Goldie's bookie joint in daylight, when Jake and Harry pick up Gordon in their car, it is nighttime, and the car's headlights are on-- so this is much more than 12 hours later.
Just where do these "T.H.E. Cat" episodes take place? It seems to be California. Here, they are talking about taking a ferry across the border. So I suppose they take place in San Diego, since they are going to take a boat ride in the ocean, and go south, across the border and into Mexico. In the waiting room, there is a tourist poster for Mexico on the wall.
*Picador (Spanish, from picar: to prick.) A horseman armed with a lance, who in a bullfight receives the first attack of the bull; he also lances the bull's neck muscles early in the bullfight, to goad the bull and to make the bull keep its head low for the later stages of the fight.
Diana Muldaur was born in 1938 and she plays the 28-year-old widow in this episode.
Lee Bergere, born 1924, was only 42 when he played an elderly man in this episode (so if he's "known Lili for 30 years," he was 12 when they first met).