I remember some of the martial arts stuff, including the first time I ever saw a pair of sai used to defend against a shinai in a kendo class.
I watched the preview of the new version. The skew is for young viewers, and the new Five-O crew all look like slightly-older college kids who wandered into a cop show. They don't have the gravitas to walk into a room and be considered somebody in charge. Not that I'm against youth per se, but if you are going to be an authority figure, being a cute or handsome thirty-something is an obstacle for us old crackers. (Jack Lord was forty-eight when the original H5O began its run, and sixty when it ended.)
This is not a new thing in American TV and movieland, to remake old shows that were popular and to young-'em-up.
Sometimes, such as in the case of, say, M*A*S*H, going from a hit movie to a hit TV series, it works. I think the new Star Trek movie reinvigorated the franchise. More often than not, when they take a classic and bring it back, it's not so successful. The Day the Earth Stood Still was, for its day, amazing and it holds up pretty well. I've yet to see a spaceship I like better than Klaatu and Gort's 1950's ride.
The remake of that? People forgot about it by the time they got from the theater to their car. All about the EFX. Yawn.
Also apropos of this discussion, The Manchurian Candidate. The Frank Sinatra version was wonderful. Denzel's update? Better actor, worse movie.
And as an amusing aside: The nastiest villain from 5-0, was Wo Fat, the Chinese communist. He was played by Ken Dickerson --Khigh Alx Dheigh -- an American of Egyptian-Sudanese-Anglo descent born in New Jersey, and about as Chinese as I am. I bring him up because he also played the Chinese villain, Dr. Brainwasher in The Manchurian Candidate ...
The new 5-0 might be a great show, you have handsome hunks and a cute hottie playing the leads, but Lord's McGarrett is gonna be a hard act to follow.