JAG (7 p.m., Ch. 2): What happened to Harm? (Sixth-season debut)
Dharma & Greg (7 p.m., Ch. 4): The pair recover from their car accident. (Fifth-season debut)
Emeril (7 p.m., Ch. 5): Celebrity chef Emeril Legasse stars in this dreadful new sitcom — the worst new show of the season.
That '70s Show (7 p.m., Ch. 13): Funny episode finds Eric in an "It's a Wonderful Life"-like look at what might have been if he'd never kissed Donna. (Fourth-season debut)
Three Sisters (7:30 p.m., Ch. 5): Nora runs into her ex-husband. (Second-season debut)
Undeclared (7:30 p.m., Ch. 13): Debut of this very funny new comedy about a group of incoming college freshmen.
The Guardian (8 p.m., Ch. 2): Debut of this new series about a rather unlikable young lawyer who plea bargains away a drug conviction by reluctantly agreeing to become a legal advocate for children.
Spin City (8 p.m., Ch. 4): Michael J. Fox makes a return appearance. (Sixth-season debut)
Frasier (8 p.m., Ch. 5): Frasier has encounters with four of the great loves of his life (guest stars Bebe Neuwirth, Shelley Long, Jean Smart and Rita Wilson) in this hourlong episode. (Ninth-season debut)
Love Cruise (8 p.m., Ch. 13): Debut of this new "reality" series that's a cross between "Survivor" and "Temptation Island."
Judging Amy (9 p.m., Ch. 2): A lawyer has a heart attack in Amy's courtroom. (Third-season debut)
Philly (9 p.m., Ch. 4): Kim Delaney stars as a feisty attorney in this gritty and uneven new drama.