Seasons & episodes

Dave talks to ""Michael Jackson"" (actually Gerard) during CBS Mailbag. Later, comedian Dennis Regan rants about marriage.

Throughout the night, Steph/Monty measures the accumulated snowfall on the roof of the theater; Daytona 500 champion Michael Waltrip presents the Top Ten; Dr. Phil makes his first-ever appearance on the Late Show, and it appears that he can take a joke; Beck performs ""Lost Cause.""

A guy whose flight from LaGuardia to Atlanta was delayed by snow sits in with the band; Mayor Bloomberg presents the Top Ten; Alan wants Dwight the Troubled Teen to shovel snow.

Amongst the ""New Catalogs"": Crate & Barrel (with new barrel-sized crates), Starbucks Coffee by Mail, and something called ""International Monkey."" Also, Kevin Spacey does impressions of Elton John and Johnny Carson, while Alan threatens the sound engineer after a (supposed) gaffe on last night's show.

In honor of tonight's Turkey Calling Champions, Dave has a swig of Wild Turkey bourbon; ""Biff Henderson's America"" makes a stop in Palomar Mountain, California, where he stands out on a ledge yelling out names of 50's-era wrestlers for an echo; The Flaming Lips perform ""Do You Realize?""

Solomon Burke sits in; during Mailbag, Dave points out that a nudist-friendly Kinko's has opened nearby, while ""police chief"" Bill DeLace complains that Dave and Harold Larkin have run the bleeding-neck gag into the ground; Dave chats with Lynne Cox, who swam a mile to Antarctica in near-freezing water.

Dave mentions that Paul and Alan were involved with last night's Grammy Awards; Rupert asks ""non-surviving Survivor"" Janet Koth if there was any hanky-panky in the Amazon (but of course); Steve Martin shows (bogus) clips of some of his less memorable appearances on the Late Show, including dangling a baby off a third-floor balcony.

Dave mentions that he woke up this morning with a swollen eye, then hypothesizes that it's either an irritation, infection or inflammation; during ""Stupid Human Tricks,"" a man juggles and removes his shirt at the same time; Norah Jones is presented with a Grammy© made out of lunch meat.

Dave's worsening eye infection puts him on the bench indefinitely, so scheduled guest Bruce Willis fills in for Daddy. Amongst tonight's highlights: Bruno and George Clarke duct tape plastic sheets on the backdrop; the ""Lean Mean EZ CD Opening Machine"" (a sledge hammer) is demonstrated; Paul interviews Bruce, then Bruce sits in with the band on harmonica; John Mayer performs ""Why Georgia.""

Tennis great John McEnroe fills in for Dave, whose condition has not improved; Fred Schnieder of The B-52's fills in for Paul, whom, according to Bones Malone, has an appointment with Dr. Phil; John and Tom Arnold help Eric Ripert make Black Pepper and Cognac Shrimp.

Regis fills in for Dave, who has now been diagnosed with shingles; Greg Giraldo does stand-up; Kathleen Edwards sings ""Hockey Skates.""

Whoopi Goldberg (a former talk-show host in her own right) is the latest to fill in for Dave during his extended bout with shingles. She starts the monologue by announcing that ""tonight's show is in color,"" and then points out that the CBS Orchestra was once again the house band of last weekend's Rock n' Roll Hall of Fame induction ceremony. Also, comedian Andy Vastola makes his network television debut.

Guest host Vince Vaughn charms the audience and hits on Rosie Perez.

No episode summary available yet.

Will Ferrell joins fellow ""Old School"" star Vince Vaughn as a guest host on Letterman. In his monolouge, Will does his famous George W. Bush impression and serenades the absent host with his version of Kenny Rogers' ""Lady."" Later on, the up and coming rock band The American Hi-Fi performs their hit ""The Art of Losing.""

Will & Grace star Megan Mullally shows a clip of her tripping as she walked onstage to accept an award at last Sunday's Screen Actors Guild awards. Later, she sings a blues number called ""Guilty.""

Brad Garrett of Everybody Loves Raymond fame does a very Letterman-esque, one-liner heavy monologue, then mentions a recent medical mishap where his testes broke his fall. Also, Lyle Lovett sings ""Straighten Up and Fly Right.""

Chicago-born comedian (and old friend of Dave's) Tom Dreseen becomes the latest fill-in host for Dave. He mentions that a fan outside the theater mistook him for Regis, then goes a spiel about his daughter's love of hip-hop. Also, lesbian comedian Suzanne Westenhoefer performs.

No episode summary available yet.

Paul fills in for Dave, lamenting in song about the big shoes he has to fill; Mike Smith of the Dave Clark Five fills in for Paul, who later sings the band's hit ""Because""; indie rocker Cat Power makes her network television debut, and is so camera-shy she can't seem to eye contact with the audience.

In a bizarre running gag, Bill Cosby pretends to be so senile that a substitute cue-card boy introduces all of tonight's guests; Hilton Ruiz, Spaceman Paterson, Steve Berrios, and Andy Gonzales all sit in lieu of a temporary depleted band tonight (only Paul, Sid and Bruce bothered to show up); Sofia Vergara promotes Chasing Papi; the D4 performs ""Get Loose.""

Luke Wilson brings up a story about how he told his Old School co-stars Will Ferrell and Vince Vaughn he was hosting the Late Show. He was surprised by how unimpressed they were, as they also filled in for Dave. Later in the show, Seether performs ""Driven Under.""

Dave returns from a month-long hiatus and makes fun of his health problems. He also shows an old ""Tonight Show"" clip as a tribute to the late, great George Miller.

""I have to be here tonight,"" Dave utters in the monologue, ""I'm out of sick days."" An ""Incredible Dog Challenge"" sponsored by Purina Dog Chow has been postponed by the weather, but that doesn't stop George Clarke from welding a metal garbage can.