I do feel for him... it must be so difficult to live your life having played such an iconic role, yet to be so overshadowed (and, if stories are to be believed, without warning).
And for a slightly more comedic take there is Snatch Wars.
I read the stories about him, but never saw that original clip before, thanks for sharing!
Nobody who played him again in the prequels, or Rogue One, or TV cameos, or at Disneyworld or anywhere else, ever moved like him nor captured his menacing walk and even just the iconic way he held up a single finger while threatening an Imperial admiral or Lando or whoever.