Make a clip look worn: dirty, scratched, and printed on bad stock. The damage is procedural and changes on every frame, so it behaves like dirt on a moving film strip rather than a still overlay.
Contrast first
Contrast Grade compresses the tones toward a harder, cheaper reproduction. Set it before adding damage, since the dirt and scratches read differently on a flat or a punchy frame.
Damage
Dirt adds broad stains and grit, Scratches thin vertical lines, and Ink Loss patchy dropouts. Faces, captions, and logos lose legibility first. Lower Ink Loss when small details disappear, since its dropouts are the most destructive of the three.
Pairing
Grunge works well on music video footage and title sequences. For an analog tape look instead of worn film, use the VHS video effect.