The year is 1969, legendary rock and roll band The Velvet Underground is playing at a Vietnam War protest in Texas. It sounds like an iconic moment. The only problem? Back then, people didn’t care all that much about The Velvet Underground. Although they are now heralded as one of the most important and influential rock groups of the 20th century, the band from New York, fronted by Lou Reed, were famously ignored by critics and performed poorly in record charts. In fairness, there were a lot of great bands around at that time. So when footage of The Velvet Underground performing live in their heyday is unearthed, it’s a big deal. This particular film was discovered in 2019 by accident at the G. William Jones Film and Video Collection at SMU in Dallas. Videographer and film archivist Jack Amadon recently breathed new life into it and uploaded it to YouTube, where it’s now nudging 700,000 views.…