It's time for the big "Seinfeld" reunion.

Another Iron Chef is crowned.

Jonah Hill guest stars as a man-child.

Dexter gets closer to the Trinity Killer.

Cleveland celebrates Thanksgiving with the family.

A billionaire tries to buy an organ.

AJ and Lorenzo try to reconcile.

The teams race through the Czech Republic.

Edward Norton guests as musician Izzy LaFontaine.

Jennifer Grey guests as Richard's blind date.

Jonah Hill guest stars as a man-child.

Eve guest stars as a choir director.

Lisa Kudrow guests as a mean dermatologist.

Singer Shakira guest stars as herself.

Elisabeth Moss guests as a cancer patient.

Brian Williams returns for another cameo.

Megan Mullally guest stars as Ron's ex-wife.

Gavin Rossdale cameos as a rockstar.

Mandy Patinkin guest stars as an organ donor.

Will Forte guest voices as Principal Wally.

Pop sensation Lady Gaga appears as herself.

Tricia Helfer guest stars as Chelsea's friend.

Heather Locklear returns as Amanda Woodward.

Tim Gunn and Tabatha Coffey give makeovers.