Lovejoy - Season 3 - Eps 7: Scotch on the Rocks
Vicky finds an old claymore (a Scottish sword) in her attic. Lovejoy buys it at auction and is offered much more than it's worth for it. Puzzled, he investigates and finds the claymore is a map to buried treasure. Someone tries to steal it, so Lovejoy is not the only one hot on the trail. But the treasure is elusive - a supermarket has been built on top of it.
About Lovejoy

Title: Lovejoy
First Air Date: 1986-01-10
Last Air Date: 1994-12-04
Status: Ended
Rating: 7.3/10 (from 49 votes)
Language: EN
Seasons: 7
Total Episodes: 73
Network: BBC One
Genres: Comedy, Drama, Mystery
Production Companies: BBC
Synopsis
The adventures of the eponymous Lovejoy, a likeable but roguish antiques dealer based in East Anglia. Within the trade, he has a reputation as a “divvie”, a person with an almost supernatural powers for recognising exceptional items as well as distinguishing genuine antique from clever fakes or forgeries.
Cast

Ian McShane
Lovejoy

Dudley Sutton
Tinker Dill

Caroline Langrishe
Charlotte Cavendish

Diane Parish
Beth Taylor