"It takes a Thief" aired from: Jan 1968 to: Mar 1970 in 66 episodes
This show ran from the time I was 10 years old until 12 years old. What I liked about it was that Alexander Mundy (Robert Wagner) worked as a professional thief for a government agency called the SIA. As he plied his craft on their behalf he got to use all sorts of cool tools to defeat all of the locks and anti theft systems he encountered during the course of his adventures. This show was an extrapolation of another movie theme popular in the 1960s, which I call the big heist theme. These movies always had a plot that centered on some expensive piece of jewelry or big stash of cash or treasure that was to be obtained by taking it.
What interested me in these movies as you can probably already guess were all the sophisticated gadgetry employed to achieve the objective. It Takes a Thief put the big heist movie theme into a format that could be digested weekly. Many years later when I started to fix cameras for a living I got to use some of the same types of micro sized tools that Alexander Mundy used to use to defeat the locks on his TV shows.