Catching classic Eagles clips from different eras shows how the band’s essential elements remained in place down through the decades. The “Hotel California” video from D.C.’s Capital Centre, filmed in 1977 when the arena-rock anthem was a brand-new single, captures the epic twin-guitar lead and Don Henley’s haunted vocal in all their glory. The 1994 MTV “Take It Easy” performance demonstrated that those sunny country-rock vibes and spotless harmonies retained their power even in Gen X’s heyday. And the 2004 Melbourne clip of the transcendent, then-unreleased “No More Cloudy Days” spotlights the Eagles’ evolution in the 21st century.