An Edinburgh granddad who built a home gym in his garden is inspiring the nation to stay fit amid the coronavirus outbreak.Viral star Tony Robertson appeared on ITV's This Morning today where he gave a demonstration to hosts Philip Schofield and Holly Willoughby in a hilarious segment filmed at his Buckstone home by wife Lisbeth.As we reported last week, 72-year-old Tony set up his own work-out space after the virus forced him into lockdown and closed his local gyms.The granddad-of-three usually works out regularly and is determined to stay fit as UK citizens are ordered to stay indoors.He has been avoiding public spaces since Covid-19 started to spread across the country, but came up with a novel way to stay active.In a bid to lift spirits