Wrecked Relics & Hidden Tunnels of Guadalcanal | History Traveler Episode 406

Picked one by one from a mixed channel. Transcript check: both title readers certain; 5 of 5 sampled certain picks confirmed by transcript, none failed. Channel rule: Include only plainly titled History Traveler and American Artifact episodes and oral-history documentaries whose content explains the history of a specific site, event, or artifact. Exclude hype or caps-style titles, vlog/road-trip series, panels with hook titles, trailers, milestones, and museum acquisition promos.