ALL CREATURES GREAT AND SMALL: YOU’VE GOT TO DREAM (2020, UK) ***½ Drama net. Channel 5 UK; pr co. Playground Entertainment; d. Brian Percival; w. Ben Vanstone (based on the books by James Herriot); exec pr. Colin Callender, Melissa Gallant, Ben Vanstone, Louise Pedersen, Rebecca Eaton, Susanne Simpson, Caroline Cooper Charles, Hugo Heppell; pr. Richard…