WILL & GRACE Grace (Debra Messing) questions Will’s (Eric McCormack) commitment to helping her raise her baby when he and Vince (Bobby Cannavale) give their relationship another try. (N/CC/HDTV/TV14) (30 mins.) (7 p.m. Ch. 5)

ER Pratt (Mekhi Phifer) gets the proverbial baptism by fire when he arrives in Darfur, where the enormous crowd of patients includes a wounded sheik and his pregnant wife. (N/CC/HDTV/TV14) (1 hr. 1 min.) (8:59 p.m. Ch. 5)

EVERYBODY HATES CHRIS Chris (Tyler James Williams) is eager to win his class’s cookie-selling contest, so he turns to the neighborhood bad guys for some sales advice, landing him in trouble with the police. (N/CC/HDTV/TVPG) (30 mins.) (7 p.m. Ch. 21)

SMALLVILLE Clark (Tom Welling) sees the ghost of Jonathan (John Schneider) in the cemetery and is shocked by what his father’s spirit tells him to do: kill Lionel (John Glover). Fine (guest star James Marsters) injects Lex (Michael Rosenbaum) with the vaccine that Lex created for Fine’s lethal virus. Kristin Kreuk and Annette O’Toole also star in the new episode "Oracle." (N/CC/HDTV/TVPG) (1 hr.) (7 p.m. Ch. 33)

MY NAME IS EARL While trying to return gasoline he borrowed without permission, Earl (Jason Lee) learns that the owner of the car he siphoned it from is determined to kill himself. He decides to build up some more karma points by giving the man a reason to live. His first idea, a date with Joy (Jaime Pressly), isn’t exactly what the doctor ordered, however. (CC/HDTV/TV14) (30 mins.) (7:30 p.m. Ch. 5)