Rent Super Gran: Series 1 (1985)

Granny Smith (Gudrun Ure) is a sweet old lady living a sedate life in the Scottish coastal town of Chisleton. Then, one day, she is accidentally struck by a stray beam from Inventor Black's magic ray machine and transformed into 'Supergran' - possessor of amazing powers, superhuman strength, and even a magic 'flycycle'! These she puts to great use in the fight against Chisleton's local villain, The Scunner Campbell (Iain Cuthbertson), and his nasty cohorts; though with Supergran's miraculous abilities, defeating the baddies is not usually too much of a challenge!