Glenfiddich was the favourite whisky of fictional detective Inspector Morse, as well as his creator Colin Dexter.

What is the Scotch they drink on blue bloods?

The brand seen on the show is Finnerty's 18 scotch, according to Whiskey Wire. Unfortunately, fans won't be able to try it themselves because it's fake. The website did suggest fans try Lagavulin 16 year old single malt instead.

What Scotch do they drink on NCIS?

Islay is actually an island off the west coast of the Scottish highlands famous for its many whisky distilleries. None of the distilleries goes by the just the name Islay, and the bottle used in the episode was a bottle of Lagavulin with the labels altered.