A grandad dubbed 'Dr Pinball' says the retro games are beoming so popular that he has a four-and-a-half year waiting list to fix the machines.<br /><br />Mark Squires, 64, founded The Pinball Surgery where he repairs, renovates and services the retro games and said many are returning to play to "relive their youth".<br /><br />His business has become so popular he has fixed more than 500 machines and owned around 180 himself.
