Friday’s Highlights

SERIES

Smallville: Chloe (Allison Mack) is approached by a stranger seeking help of the superhero variety on a double episode of the young Superman drama (8 p.m. KTLA).

Medium: Diedrich Bader (“The Drew Carey Show”) guest-stars as the mystery man in Allison’s (Patricia Arquette) visions in the new episode of the supernatural drama (9 p.m. CBS).

Bill Moyers Journal: The journalist and his guests discuss the Supreme Court’s recent decision to allow corporations to spend large sums on elections (9 p.m. KCET).

NUMB3RS: Marilu Henner (“Taxi”) and William Katt (“The Greatest American Hero”) guest-star in this new episode of the crime drama (10 p.m. CBS).

Cribs: This new episode visits the digs of country music stars such as Glen Campbell and Tanya Tucker (10 p.m. CMT).

Spartacus: Blood and Sand: Our hero (Andy Whitfield) continues his gladiator training on a new episode of the graphically violent sword-and-sandal drama (10 p.m. Starz).

Now on PBS: Rep. Bart Stupak (D-Mich.) and former Gov. Howard Dean (D-Vt.) discuss the Democratic Party’s stance on abortion in this new installment (10:30 p.m. KCET).

John Oliver’s New York Stand-Up Show: Nick Kroll, Chris Hardwick, Matt Braunger and Kristen Schaal are the featured funny people (11 p.m. Comedy Central).

SPECIALS

SOS Saving OurSelves: Help for Haiti: Wyclef Jean, Chris Brown and Lil’ Wayne are among the performers slated for this concert to benefit the victims of last month’s devastating earthquake (8 p.m. BET, MTV, VH1).

MOVIES

True Grit: John Wayne stars in this 1969 western (5 p.m. TCM); the Duke’s final film, 1976’s “The Shootist,” follows at 7:15 p.m.

Apocalypto: Mel Gibson directed this 2006 adventure set in the waning days of the Maya civilization (7:40 p.m. Starz).

SPORTS

Pro basketball: The Bulls battle the Hawks (5 p.m. ESPN), and the Lakers welcome the Nuggets (7:30 p.m. ESPN, FSN).