Damn, I think you’re right. Green Acres debuted almost exactly one year before my series (and yes, it was a spinoff).
Just to be argumentative, my character was in each and every episode of both series, the original and its spinoff. He was also listed in the opening credits of every show, unlike Mr Cady.
Hints: (a) He was not American. (b) In the '50s, he starred in a sitcom based on a Cary Grant movie of the '30s.
Of course you’re talking about Leo G. Carroll as Alexander Waverly in both The Man from U.N.C.L.E. and The Girl from U.N.C.L.E.
DINGDINGDING!!! Congratulations, you’ve just won a ten-day trip to Tahiti, all expenses paid! 
I concede that Mr Cady was also a regular on two concurrent series, though (albeit a supporting player and not one of the main stars).
Mr Carroll’s sitcom was Topper, BTW.
I’ll concede that. Cady was a supporting actor and not one of the leads.
No, Max had an extreme phobia of fire due to narrowly surviving one as a puppy (as in lighting a cigarette was a bad idea). Jaime found the connection to what everyone else had thought was random psychosis. The episode ended with Oscar saying that they’d get an animal psychologist to do doggy therapy.
Huh, never realized he was General Meade in Gettysburg.
Sadly he was badly miscast in his small part in Scaramouche.
What would $6 million be today?
RIP, Richard. 
$35,245,547.45 in 2017.
https://www.dollartimes.com/inflation/inflation.php?amount=10000&year=1972
Six million dollars was underpriced even in the early 1970s. Billion would have been better. If you’ve never seen the original pilot movie with Darrin McGavin as Goldman, the backstory is that there was a secret defense department meeting where they in essence said “we have this ultra-advanced technology but it’s so expensive that we could never afford to implement more than one prototype; what can we actually use it for?” And the answer was to build a cyborg (original series name) who could carry out covert ops no other asset could possibly hope to accomplish. That was the theme of the first TV movies that preceded the regular series.
Nitpick: McGavin played Oliver Spencer, a character who was not in the novels.
MeTV ran a marathon of their various Westerns yesterday with Richard Anderson in them. In one he played an Indian.
Oscar Goldman was always my favorite character in the Bionic series (both of them). I especially liked his chemistry with Jaime Sommers (Lindsay Wagner). I think he had a little crush on her but was always too professional to show it. Now, many years later watching Agents of SHIELD, Phil Coulson reminds me a lot of Oscar - both bureaucrats, but both smart, savvy, and skilled rather than the typical bumbler.
I met Mr. Anderson briefly at SDCC a couple years ago. I didn’t chat long because he was asking like $80 for an autograph or a photo and I didn’t want to pay that, but in our brief chat he struck me as a kind, gracious man (though by that time it was clear his mental faculties weren’t where they used to be–he would have been in his late eighties by that point, so no wonder).
RIP, Mr. Anderson.
Many moons ago TV Guide interviewed him. The advice his dad gave him was to become a character actor because they always work.
Wow. The Six Million Dollar Man was the oldest show with a still-living intact cast. I wonder what show is now?
Cheyenne, maybe?
How many were considered part of the cast? 2? Just Steve & Oscar? Rudy was played by two different actors, and the one that played him the most (half the episodes), Martin E Brooks, died in 2010.