Lead cast: Lee Sun-bin, Kang Tae-oh

Latest Nielsen rating: 1.79 per cent

The great thing about potatoes is how versatile they are. Fry them, boil them, steam them, mash them – no matter how you slice or cook them, you’ll probably wind up with a tasty dish.

The same, alas, cannot be said for The Potato Lab, a rigidly formulaic Korean drama series that does not dare stray from the tried and true recipe of the workplace romantic comedy.