"This is from an episode of "The Johnny Cash Show", which aired on the ABC network from 1969-1971.
This clip features Johnny Cash and Dennis Hopper singing Kris Kristofferson's song "The Pilgrim Ch.33" (supposedly Kris wrote the song about Cash & Hopper, along with several other people). One thing I've learned from this clip... Dennis Hopper should stick to acting." Added by renner70