STREAMING—Though it would make a great band name, Future Man and The Umbrella Academy are two different television series now at your streaming fingertips.

The two shows tackle time travel and its ramifications in a way that is absorbing. Part of the richness in the quality of these shows is the fastidious attention to detail both in sets and costume design. Their characters are icing on the cake.

Netflix’s Umbrella Academy follows a very peculiar event on one particular day in 1989 when 43 infants are born to random, unconnected women who showed no signs of pregnancy the day before. Seven of...