During Hannibal's memory flashback, the bridge that was blown up was taken from The Green Berets (1968).
The shot of the police dispatcher with his back to the camera at the beginning of the episode is lifted from Hawaii Five-O (1968).
The friend and fellow soldier whose funeral the A-team attends is named Ray Brenner. Ray Brenner (1927-95) was an actual television writer for many shows from the 1950s to the 1980s. Brenner retired in 1983, the year this episode was produced.
The 1966/1967 Charger in primer parked behind the garage played the title role in The Hit Car (1981), which is why it has gun ports and its windows are blocked off with armored plates. The Greatest American Hero was an earlier Stephen J. Cannell production.
At the funeral, three volleys of three men are fired to respect their fallen comrade. Most people believe 21 rounds must be fired, but historically this is not the case. The number of volleys is always odd, but the number of rounds can vary. Ideally at a funeral 21 rounds would be fired, but this may vary based upon personnel available.