Similar to Bionic Man as the agent has robotics and there are people who monitor him.
But the way they cut back between the staff (similar to Time Tunnel) is very off putting. Didn't work as a show idea.
There were a lot of those "spy" shows where the spies had some kind of SF power - Invisibility in several different TV shows (I can think of three), mystical powers from Shangri La in
The Champions, webbed feet in
The Man From Atlantis - and as time went on, I think that those "powers" themselves became more important than the characters were, until by the time you get to
Knight Rider, David Hasselhoff is simply window-dressing for the technology of KITT. I have to say though, as a kid, I did really like
The Six Million Dollar Man, for all of it's many faults.
I agree,
Star Trek was aimed at a much more "adult" audience, at least initially, though many of the episodes fell short of that (
Spock's Brain etc.), and it was more in the style of
The Outer Limits and
The Twilight Zone with some heavyweight SF writers
, but I think
@BAYLOR has a point about SF TV in the 1970's and '80's being on a slide into juvenility. However, as a child of the time, that was the feeling that I got about all kinds of SF from adults; that even SF books were juvenile, and that "adults" somehow grew out of them. I'm don't think that the turning point was
Star Wars because that is juvenile itself, but in the 1970's there were some other big films based on SF novels with more adult themes; that were more prescient of the future; more thought provoking. I guess that eventually trickled down to TV too.
As for cost cutting on shows, the re-use of old footage, the use of stock footage, and the cutting back to studio based sets was necessary to come in on budget, but you cannot compare any of these shows with
The Time Tunnel which did this on an industrial scale, using old movies for historical scenes and repeatedly dressing up the same sets. Even the "staff" in the "lab" consisted only of a few bookcases with exploding electrical boxes. At least
The Six Billion Dollar Man had outdoor sets and some complex stunts.