This clip is a short excerpt from an episode of The Mike Walsh Show in 1980, which was guest-hosted by singer Glenn Shorrock and featured an interview with John Farnham.
John performs a single from his new album Uncovered, filmed using superimposed images of him. This technique was common in daytime TV in the early '80s, and the effect adds to the song's introspective lyrics and melody.
After his performance, John joins Shorrock to chat about his career comeback and the new album. The interview is delightfully natural, and more like two friends catching up for a quick chat than a formal interview.