Here's an 8th season episode that aired on TV Land (must have been a special presentation, because they didn't regularly air Hawaii Five-0). Of course that means it's edited.
www.guba.com/watch/2000852491
The 8th season in 1975 features one of my favorite versions of the series theme songs, and is sort of a more refined cross between the 4th Season theme and a prototype for Season 10's theme.
This one runs more than 46 minutes instead of 49+.
"The Case Against McGarrett" guest-stars Harold Gould as Honore Vashion. This single episode is three years after the 3-part story "V for Vashon", and picks up where Vashon is in prison.
TV Land also ran that 3 parter, because here's "V for Vashon: The Patriarch" from Season 5:
http://www.guba.com/watch/2000845221
A warning though: Whoever uploaded the above neglected to include the rest of the Vashon trilogy.
"V for Vashon: The Son" and "V for Vashon: The Father" are missing!