Apologies to Mighty Mouse, who had a bit of a comeback in the late ‘70s (sharing a Saturday morning time slot with, of all creatures, those mouthy magpies Heckle and Jeckle).But when it came to rescuing the world from peril in the 1970s with super-strength and other fantastical powers, this was a decade dominated by primetime TV’s superheroes – from Wonder Woman and The Incredible Hulk to The Six Million Dollar Man and more.