Having raved about this show a year ago, and given it 50 stars in a rating system maxing at five, it was a huge relief to find it every bit as funny as I remember.

A hit at Edinburgh in 2005, and a sell-out at the Peacock in 2006, Jump is still a nifty fifty of a show, a laud-aloud martial-arts caper with spoof-tastic special effects, self-deprecating humour and ring-ding acrobatics.

It tracks the antics of a seemingly normal Korean family, only beneath the surface the sober parents, cute daughter, bashful fiancé and doddery grandpops are accidental martial-arts supremos.

The publicity describes them as The Waltons meets Jackie Chan, and it's spot-on, although there is also a nod to the badly dubbed Seventies TV series Monkey and a wink to the slob-happy manners of our own Royle Family.

Jump is a family-friendly two parter, with running and jumping and shouting, plus hilarious low-tech replications of the absurdly slick and inexplicably slo-mo special effects you see in modern-day films.

Comedy classics flow thick and quick, from finding lethal weapons on audience volunteers (you have been warned), to bumped heads and burglars in cat-suits.

The show's success lies in its oceanic cultural optimism, meaning the very talented Ye-Gam troupe can go from spoofing their own martial-arts heritage to Laurel and Hardy send-ups, to the exaggerated freeze-flow of hip-hop, to the exaggerated passion of Hernando's Hideaway ("I know a dark secluded place ..."). The audience laughed with exclamation marks!