ENTERTAINMENT
March 4, 1989 | HOWARD ROSENBERG, Time Television Critic
When humans are incinerated, only their shadows remain. It's something to contemplate while watching "Day One," a terrifically good, finely acted, strikingly detailed and inevitably horrifying account of the race to develop the atomic bomb. The three-hour Aaron Spelling production airs at 8 p.m. Sunday on CBS (Channels 2 and 8). And arriving at 5 p.m. and 8 p.m.