I thought I'd post more on the 1960s Tintin animation.
They were originally shown in cliffhanger format, where 5-minute segment would air every weekday, forming a complete storyline. Some later video releases edit them together into one large film.
The English version plays it off like a radio serial, complete with the narrator (Paul Frees) saying "Herge's Adventures of Tintin!" in booming voice at the start of every episode. I thought I share this, The Secret of the Unicorn and Red Rackham's Treasure, which was adapted into a mocap film recently by Steven Spielberg.
Dal McKennon, who frequently did voices for Walter Lantz, does Tintin and Professor Calculus. Paul Frees is Captain Haddock, Thomson and Thompson, as well as the narrator. The two men took turns voicing the villains and other side characters.
Interestingly they took liberties with the original storyline. For one, in the comics, Tintin didn't meet Calculus until Red Rackham's Treasure, but here they already knew each-other.