Seaway

Although officially Canadian, many of the show's writers and directors were American (as was the series creator/script supervisor Abraham Polonsky), with some British contributors as well (such as Ian McLellan Hunter and Donald James). The producers were the then-married couple of Michael Sadlier and Maxine Samuels, who had created a popular children’s adventure series The Forest Rangers.

With extensive film location shooting, it was the most expensive series produced in Canada to that time with a total cost of $3 million ($13.5 million today), and although it did well enough for the CBC in terms of viewers, a hoped-for sale to American network television never happened because the series was shot in black-and-white, and U.S. network shows by that time were increasingly being made in color (with fewer and fewer exceptions). Only the two final two-part episodes of Seaway, "Don't Forget to Wipe the Blood Off" and "Gunpowder and Paint," were filmed in color.