Now sponsored by Bostik, and still missing an apostrophe, Gone Fishin is in its 25th season, with more than 600 episodes aired.
It is currently screening at 4.30pm on Sundays on TV3.
That is a remarkable feat in television production, a marine version of Country Calendar, and even more so when the production team is just Graeme and wife Sandee.
The fact he operates from a wheelchair, stricken by multiple sclerosis 20 years ago, makes it even more so.
The disease was a cruel blow for such an active man and put an end to deer stalking and diving. But not fishing.
And don't dare feel sorry for him.
His affable approach to life, even a restricted one, is that every day is a great day.
Sinclair took on an even bigger task with the launch of Ocean Bounty last year, 13 one-hour programmes on every aspect of the commercial fishing industry, from tooth fishing in the Ross Sea to flounder netting in the Firth of Thames. That ground breaking show has netted an average 100,000 viewers per episode.
A second series ran this year and he is now working on a third.
He reckons he will never run out of material.
Despite his positive profile and consistent inclusive message that we must all co-operate in a shared fishery, Sinclair gets his share of abuse from the cowardly, almost always anonymous haters that the internet encourages.
He has been accused of selling his "sole", proving the extreme fringe who would ban all commercial fishing are as ill-educated as they are antagonistic.
But the trolls are far outweighed by all those who love fishing and the sea, commercial and recreational, who do recognise we are all in it together and all need to strive for long-term sustainable fisheries.
Sinclair's achievements are given generous acknowledgement in the October issue of NZ Fishing News, the most popular recreational fishing magazine.
Its editor, Grant Dixon, is also celebrating a milestone - 25 years as editor overseeing 300 issues.
It may be the dream job, but publishing is hard, unrelenting yakka requiring great determination and discipline.
I have had the good fortune to go fishing with both Sinclair and Dixon on separate occasions - with a singular lack of success.
On a glorious spring day last year we set out from Stillwater on the Whangaparaoa peninsula in Sinclair's brightly painted 7-metre Surtees, Orange Roughy.
Despite all the whooping and hollering on Gone Fishin as more trophy fish are brought aboard and the stream of big snapper pix my Auckland mates delight in sending me, we caught just one snapper on a slow day where the highlight was getting up close with the Gulf's resident Bryde whales.
Similarly, years ago charter boat operator Pete Lamb took Dixon and me out into Cook Strait aboard the converted Australian long liner Daniel. The plan was to bomb up puka and bluenose big time in the deep, topped up with tarakihi and blue cod in closer.
The reality was unpleasant conditions prompted by a snotty 30 knot nor'wester and all we caught was numerous scarpies (sea perch) off Karori Light.
Dixon's young daughter Miah was also aboard, taking pix for the magazine.
She is now Fishing News deputy editor.
Sinclair's son James is also building on his father's legacy, taking an increasing role in Gone Fishin.
Both were nurtured with a respect and love for the marine environment.
Their dads can be proud of their legacies.