Indicator start the new year with some impressive Blu-ray sets, including a massive 10-disk tribute to amateur filmmaker Michael J. Murphy whose five-decade career produced three dozen features in multiple genres; a two-disk set of the first two adventures of Mexico’s most famous masked wrestler, Santo, which includes a fascinating history of popular cinema in Mexico; and another two-disk set with three different cuts of Sergio Sollima’s first western, The Big Gundown (1967).