Today on TV

Dora the Explorer (6 p.m., Nick): A special episode of this preschool favorite introduces a new character — Dora's cousin Diego.

Monday Night Football (7 p.m., Ch. 4): Chiefs at Raiders

Next Joe Millionaire (7 p.m., Ch. 13): America's dumbest hit show returns with the same format — not-rich hunk (David Smith) pretends to be a millionaire looking for love, and 15 women vie for his attentions and his non-existent fortune. The twist is that these gals are all non-Americans who never saw the first show. Fox, never shy about its cheesiness, is declaring, "First we lied to America. Now we're taking on the world!" Sheesh.

7th Heaven (7 p.m., Ch. 30): Eric issues a challenge to his parishoners.

Still Standing (7:30 p.m., Ch. 2): Lauren's teacher is Bill's old flame.

Everybody Loves Raymond (8 p.m., Ch. 2): Debra and Ray regret hiring Gianni to remodel their kitchen.

Skin (8 p.m., Ch. 13): See accompanying story.

Everwood (8 p.m., Ch. 30): Amy is taken aback when Ephram falls for someone else.

Two and a Half Men (8:30 p.m., Ch. 2): Charlie and Alan each have romantic adventures, which turn out very differently.

CSI: Miami (9 p.m., Ch. 2): A masked gunman kills two bar owners.

Third Watch (9 p.m., Ch. 5): Yokas' mom (Mia Farrow) tries to motivate her.