by SHOWstudio on 21 November 2012. Piers Atkinson gives a masterclass in hat blocking live on SHOWstudio! Piers Atkinson begins his residency at SHOWstudio with a masterclass in hat blocking. Tune in now to see the milliner and his team in action. Comment Log into my account | Sign up Your Name Your Comment RefreshEnter the characters shown in the image. Not case sensitive.