 During the 1970s, Harrison toured the United States in productions of "[[Camelot (musical)|Camelot]]" and "[[The Sound of Music]]".He also played Henry Higgins in "[[My Fair Lady]]", the part first performed by his father in the musical's original stage production and film version.Other touring roles included King Arthur in "Camelot", Baron von Trapp in "The Sound of Music", Don Quixote in "[[Man of La Mancha]]", Brian Runicles in "[[No Sex Please, We're British]]" and Lloyd Dallas in "[[Noises Off]]".