1968: CBS promo for Hawaii Five-O

In the 1960s and ’70s, U.S. television networks ran lengthy promos for the upcoming season. Here’s one from 1968 for a new police drama CBS was introducing that had espionage overtones. The 5-minute promo is mostly a Cliff’s Notes version of the Hawaii Five-O pilot (McGarrett’s first encounter with Chinese spy Wo Fat), along with a few scenes from “Samuari,” the first episode filmed after the pilot.

UPDATE: Of course, all these must end. So, here’s a 1981 promo made by Viacom to sell the series in syndication to local TV stations: