All in all, Hitchcock and Truffaut recorded
over 50 26 hours of interviews (with the help of translator Helen Scott), and these were eventually edited down into the “Hitchcock/Truffaut” book (released in 1967).
Approximately 12 hours of the interviews were broadcast a few years ago on French radio as a series of 25 half hour episodes, and it was these that Tom was using for his blog posts (currently up to part 13).
For those of you who are curious to hear the remaining 12 episodes, I’ve finally gotten around to adding all 25 parts to the wiki.
I’ve also added a television interview (dated 13/Apr/1984) from the “Apostrophes” series in which host Bernard Pivot talks to Truffaut about Hitchcock. This would be Truffaut’s last public appearance before his death in October 1984. The video is French language with Italian subtitles.