By Denny Dyroff, Entertainment Editor, The Times Uriah Heep In 1969, guitarist Mick Box formed a band in London called Uriah Heep – its name taken from a Charles Dickens character. Box has remained the core element of the band and has kept it going for more than five decades. On May 20, Uriah Heep visits the area for a show at the Sellersville Theater (24 West Temple Avenue, Sellersville, 215-257-5808, www.st94.com). ...