Critic’s corner

The drama! The cracklin’ voice! The eyebrows! The bedazzled outfit! Neil Diamond takes the Madison Square Garden stage and sings some of his greatest hits. “Sweet Caroline,’’ “Cherry, Cherry,’’ “I Am . . . I Said’’ - they’re all cued up for your listening pleasure. Also: Interviews with the man himself.

Woodstock: Now & Then 9 p.m., VH1

So 40 years ago there was this concert, and it lasted three days, defined an entire generation, and changed the world forever, and everyone over 50 was there, or knows someone who was there, or knows someone who knows someone who was there. This two-hour documentary, directed by Barbara Kopple, will celebrate the anniversary and explore the festival’s relevance today.

Colossal Squid

8 p.m., Discovery Channel

Icky Mantle.

Lords of the Revolution

8 p.m., VH1

Andy Warhol, peer of the soup can.

Haunted Lighthouses of America

10 p.m., Travel Channel

Aw, who’s afraid of Virginia Woolf?

Supernanny

8 p.m., Channel 5

Jo versus the tantrum.

Dog Whisperer

8 p.m., National Geographic

Opie has issues.