There was a detective sort of series in the 70s ... there were, I think, two main actors and it went back and forth as to which one was on at any given time. The main thing was that there were, for then, various high tech devices through which the men were watched, guided, or some sort of thing.
Anyone remember what this series was called? I had in my head that it was Switch, but that was a different thing than I thought it was.
Edit Kathy Mar came up with it on Facebook ... it was Search.