Tuesday`s TV highlights: `Rudolph the Red-Nosed Reindeer` on CBS
(LA Times NBA)

SERIES The Flash The four-series crossover event that began Monday on `Supergirl` and `Arrow` continues on a new episode of this superhero drama before concluding on a new `DC´s Legends of Tomorrow.` 8 and 9 p.m. KTLA This Is Us On a new episode of the hit family drama, Jack (Milo Ventimiglia)...