Critic's corner

10 p.m., History Channel
Every TV series seems to have a reality counterpart. This show is the real "X-Files," as a team of researchers investigate UFO sightings. Tonight, the hunters - Bill Birnes, Pat Uskert, Dr. Ted Acworth, and Jeff Tomlinson - look back at a 1947 incident involving falling debris from a mysterious flying machine. Pictured (from left): Acworth, Uskert, and Birnes.

9 p.m., Discovery Channel
The 411 on 007.

10 p.m., Bravo
Grappling with pro wrestling outfits.

9 p.m., Channel 25
Have you stopped watching reality TV yet?

9 p.m., Channel 2
This four-part series finds Harvard's Henry Louis Gates Jr. guiding a new group of notables to discover their ancestry. Tina Turner, Chris Rock, Jackie Joyner Kersee, Morgan Freeman, Maya Angelou, and Don Cheadle are among those who, with the help of DNA analysis, genealogical research, and oral history, trace their lineages back to Africa.

10 p.m., Channel 4
It's a new one. Pounce, y'all.

9 p.m., Biography Channel
Who's that in back of the "House"? Why, it's Hugh Laurie.

Comcast
Francis Ford Coppola's film plays like a black-and-white dream about teen-gang movies of the 1950s, especially in the person of the young Matt Dillon, whose looks suggest James Dean and whose voice evokes the young Marlon Brando. (R; runs through March 27)