 They used techniques borrowed from underground and avant-garde film, including reversed film and slow motion, dramatic lighting, unusual camera angles, and color filtering added in post-production.At the end of 1967 the group released their third film, the one hour, made-for-television project "Magical Mystery Tour"; it was written and directed by the group and first broadcast on the BBC on Boxing Day 1967.Although poorly received at the time for lacking a narrative structure, it showed the group to be adventurous music filmmakers in their own right.