In the fourth season of the hit sitcom, Grace (Debra Messing) romances Nathan (Woody Harrelson); Will (Eric McCormack) tries to get his parents back together; Jack (Sean Hayes) strengthens ties with his estranged son; and the gang gets an emotional workout during a dysfunctional Thanksgiving. Guest stars include Matt Damon, Suzanne Pleshette, Michael Douglas, Glenn Close, Rosie O'Donnell and Parker Posey.

15. A Chorus Lie - Matt Damon makes a guest appearance as a clever charmer named Owen, who's competing against Jack for a spot in New York's Gay Men's Chorus. Truth be told, however, Owen is totally straight and is really after the group's big perk: a summer trip to Europe, all-expenses paid. Jack suspects Owen's ruse but needs proof. How about the hug test? Now a flustered Jack reluctantly turns to Grace to "in" Owen. Meanwhile, a scheming Karen tries to pass off an unwitting Will as her lover and not her lawyer when she discovers that she's the object of pity for being single at her own Valentine's Day party. 3.38 stars (Dale-3.75, David-3.5)

16. Someone Old, Someplace New (1) - Will and Grace feel they need more elbow room, so they search for larger digs and find an exquisite placedespite the efforts of Sandra Bernhardbut to finance the move, they illegally sub-let their old apartment. Meanwhile, a well-intentioned Jack begins filming a documentary of Karen's colorful life to celebrate her birthday but accidentally stumbles upon her estranged, lowlife mom. 3.5 stars.

17. Something Borrowed, Someone's Due (2) - After Will and Grace move into their expansive new dream apartment, they discover the awful pangs of separation anxiety as they pine for their smaller old digs now happily occupied by their friends who sub-let the place. Elsewhere, Jack tries to reconcile Karen with her estranged grifter of a mom, who wants to recruit her daughter for her next caper. 3.13 stars (Dale-3.25, David-3)

18. Cheatin' Trouble Blues - Will presents his newly reconciled parents with a cruise for their anniversary, but their individual secrets ruin his hopes. Meanwhile, Jack and Karen take the stairs to the anniversary party because of Karen's "fear" of elevators. 3.25 stars

19. Went To A Garden Potty - In the aftermath of his parents' divorce, Will salvages a beloved garden gnome nicknamed "Squatsie" and proudly plants the childhood relic in his apartment's community area until Grace accidentally delivers a coup de grace on the gnome's dome with a shovel. Elsewhere, Jack consults his acting coach when he fears that his heterosexual role in a mattress commercial produced by Karen will stereotype him for more meaningful gay acting gigs in the future. 3 stars.

20. He Shoots, They Snore - Teaching a design seminar challenges Grace; meanwhile, Will chaperons Jack's son Elliot to a Basketball tournament, but when Elliot has one of his "teenage firsts", Jack is upset that Will dealt with it. 3.13 stars (Dale-3.25, David-3)

Disc 1: 3.23 stars
Season 4 (Disc 1-3): 3.60 stars
Collection (Season 1-3): 3.62 stars