Best-bets for April 21: crime, romance and octopuses
1) “Secrets of the Octopus,” 8-10:52 p.m., National Geographic Channel. Ignored (or feared) for centuries, octopuses (shown here) are the new media stars. They deserve the attention. They can change color, shape and image; they can hide from a predator, befuddle a prey, befriend a scientist. This terrific three-parter reruns at 10:52 p.m. today and then at 7:08 p.m. Monday, in an Earth Day marathon. Read more…