Which was the first televised/video-recorded WCC match? I was thinking about the way that chess has taken to being streamed recently and it got me wondering how far back one could go if they were to watch WCC matches instead of playing through them.

So which match was the first to be completely (not just one game or the awards ceremony, etc.) recorded as it was being played?
From a report by Harry Golombek on the seventh game of the Botvinnik v Smyslov world championship match in Moscow on 30 March 1954:

Television made its first appearance in the history of world chess championship matches during the course of this game, which was televised from 8 till 8.30 p.m.
Source: BCM, May 1954, page 141.

The 24-game match had 14 decisive games, 12 of the first 16, including a streak of 8 decisive results in a row! All the games were full of fight, and many of the games were of theoretical significance.