Episode 1: Jason Lee, Elton John

Episode 2: Justin Timberlake, Sarah Silverman

Episode 3: Steve Carell, Jamie Lee Curtis, Joan Jett

Episode 4: Teri Hatcher, Jon Heder, Kenny Chesney

Episode 5: Calista Flockhart, Harland Williams, Gomez

Episode 6: Eva Longoria, Cole and Dylan Sprouse, Death Cab for Cutie

Episode 7: Adrien Brody, Chef G. Garvin, Alan Jackson

Episode 8: Evangeline Lilly, Magic Johnson, Diana Krall

Episode 9: Ashton Kutcher, Jenna Fischer, Amos Lee

Episode 10: Jessica Simpson, Bill O'Reilly, Snow Patrol

Episode 11: Wanda Sykes, Chris Matthews, John Mayer

Episode 12: Helen Mirren, B.J. Novak, Jet

Episode 13: Michael Clarke Duncan, Lisa Lampanelli, Rod Stewart

Episode 14: Bob Newhart, Kristin Chenoweth, Camp Freddy

Episode 15: Jarod Miller, Bradley Whitford, Ray LaMontagne

Episode 16: Tina Fey, Annika Sorenstam, Fergie

Episode 17: Tiger Woods, Emeril Lagasse, Chingy

Episode 18: Arnold Schwarzenegger, Heidi Klum, Le Rêve

Episode 19: Sandra Bullock, Michael Caine, Chris Young

Episode 20: David Gregory, Ali Larter, Edie Brickell & The New Bohemians

Episode 21: Hugh Jackman, Tim McGraw

Episode 22: Jennifer Love Hewitt, Tim Burton, Barry Manilow

Episode 23: Annette Bening, Mad Scientist David Willey, Sarah McLachlan

Episode 24: Sally Field, Bug Man Ruud Kleinpaste, Kevin Federline

Episode 25: John Landis & The Spiridellis Brothers, JoJo

Episode 26: Tim Allen, 8-year-old opera singer Gwyn Mackenzie, Carrie Underwood

Episode 27: Roseanne Barr, Sharon Osbourne, Marilyn Manson

Episode 28: Emma Thompson, Spencer Breslin, Regina Spektor

Episode 29: Penelope Cruz, John Stamos, "Weird Al" Yankovic

Episode 30: Russell Crowe, Rachael Ray, Kellie Pickler

Episode 31: Hugh Laurie, America Ferrara, the Cheetah Girls

Episode 32: Courtney Love, Brad Garrett, OK Go

Episode 33: Ellen DeGeneres, Fred Willard, Tony Bennett

Episode 34: Borat, Martha Stewart, Damian Rice

Episode 35: Lindsay Lohan, Emmitt Smith, Army Of Anyone

Episode 36: Sharon Stone, Patricia Arquette, Vince Gill

Episode 37: Rachel Weisz, Nick Cannon, Il Divo

Episode 38: Jaime Pressly, Adventurer Bear Grylls, Cirque du Soleil: The Beatles - LOVE

Episode 39: Emilio Estevez, D.L. Hughley, Josh Groban

Episode 40: Kate Winslet, Wilmer Valderrama, Buddy Guy

Episode 41: Demi Moore, Ron Livingston, Chris Cornell

Episode 42: Denzel Washington, Catherine O'Hara, Jerry Lee Lewis with Kid Rock

Episode 43: Amazing Animals With Julie Scardina, Ellen Pompeo, Nelly Furtado

Episode 44: Howie Mandel, Nelly Furtado

Episode 45: Kristin Davis, Ralphie May

Episode 46: Cameron Diaz, Gwyn Mackenzie, The Wreckers

Episode 47: Lucy Liu, Bob Saget, Snoop Dogg

Episode 48: Al Gore, Karolina Kurkova, Fantasia

Episode 49: Morgan Freeman, Josh Duhamel, Barenaked Ladies

Episode 50: Sen. Barack Obama, Maggie Gyllenhaal, Taylor Hicks

Episode 51: Cate Blanchett, Larry the Cable Guy, Corinne Bailey Rae

Episode 52: Dennis Miller, LaDainian Tomlinson, K.T. Tunstall

Episode 53: Jack Black, Chef G. Garvin, Paulina Rubio

Episode 54: Mel Gibson, Bil Dwyer, Ludacris

Episode 55: Sylvester Stallone, Parminder Nagra, Seal

Episode 56: Former President Jimmy Carter, Edward Norton, Panic! At the Disco

Episode 57: Jamie Foxx, Brad Paisley

Episode 58: Dakota Fanning, Aaron Eckhart, Twisted Sister

Episode 59: Leonardo DiCaprio, Naomi Watts, The Goo Goo Dolls

Episode 60: Tobey Maguire, spider expert Jules Sylvester, Sarah McLachlan

Episode 61: Samuel L. Jackson, Nick Thune, Scott Weiland

Episode 62: Robert De Niro, Jennifer Hudson

Episode 63: Will Smith, Pamela Anderson, Richard Roeper, The Blind Boys of Alabama

Episode 64: Matthew McConaughey, Opie and Anthony, The Killers

Episode 65: Dustin Hoffman, Abigail Breslin, African Children's Choir

Episode 66: George Clooney, Maria Lark, Unwritten Law

Episode 67: Justin Timberlake, Masi Oka, Matisyahu

Episode 68: Hilary Swank, Tom Papa, Akon

Episode 69: Terry Bradshaw, baker Marjorie Johnson, Papa Roach

Episode 70: Kiefer Sutherland, Betty White, Chris Daughtry

Episode 71: Ben Affleck, Chris Leak, Jewel

Episode 72: Sen. John Edwards, Terri Irwin, Mindy Smith

Episode 73: Helen Mirren, Isaac Mizrahi, Los Lonely Boys

Episode 74: Renée Zellweger, Joy Behar, Common

Episode 75: Paula Abdul, D.L. Hughley, Tyrese feat. Lil Jon

Episode 76: Matt Lauer, John & Margaret Ragonese, The All-American Rejects

Episode 77: Meredith Vieira, Ryan Reynolds, Robin Thicke

Episode 78: James Woods, Lisa Lampanelli, Five For Fighting

Episode 79: Don Rickles, John Stamos, Rocco DeLuca & The Burden

Episode 80: Jennifer Garner, Ty Pennington, Bow Wow

Episode 81: Jon Cryer, Jeff Garcia, Switchfoot

Episode 82: Sienna Miller, Phyllis Diller, Branford Marsalis Quartet

Episode 83: Wanda Sykes, Sendhil Ramamurthy, The Bird And The Bee

Episode 84: Rebecca Romijn, Bob Saget, Rodrigo Y Gabriela

Episode 85: Bill Cosby, Mary Lynn Rajskub, Katharine McPhee

Episode 86: Diane Keaton, Ivanka Trump, The Soweto Gospel Choir

Episode 87: Forest Whitaker, America Ferrera, Daniel Powter

Episode 88: Abigail Breslin, Amazing Animals With Julie Scardina, Christina Aguilera

Episode 89: Cuba Gooding Jr., Miss USA Tara Conner, The Game

Playing

Episode 90: Clint Eastwood, Jennifer Hudson, John Waite and Alison Krauss

Episode 91: Penelope Cruz, Tyler Perry, James Hunter

Episode 92: Hugh Grant, Himalayan Bears With Julie Scardina, Norah Jones

Episode 93: Mark Wahlberg, Sarah Silverman, Mat Kearney

Episode 94: Drew Barrymore, Kyle Krichbaum, Solomon Burke

Episode 95: Nicolas Cage, D.J. Sampson & Sam Ballerini, The Fray

Episode 96: Dennis Miller, baker Marjorie Johnson, Taylor Swift

Episode 97: Beyoncé, Charles Barkley, Kenny Wayne Shepherd

Episode 98: Jim Carrey, Gov. Tom Vilsack, Dustin Kensrue

Episode 99: Teri Hatcher, Rhys Ifans, Omarion

Episode 100: Simon Cowell, Randy Jackson & Ryan Seacrest, Tiki Barber, Silversun Pickups

Episode 101: Bill Maher, skydiving accident survivor Michael Holmes, Rodney Atkins

Episode 102: Jaime Pressly, Gordon Ramsay, Gomez

Episode 103: Peter O'Toole, Christina Ricci, Hellogoodbye

Episode 104: Animals With Joan Embery, William H. Macy, John Mellencamp

Episode 105: Courteney Cox, Richard Roeper, Plain White Ts

Episode 106: John Travolta, Katt Williams, Everclear

Episode 107: Tim Allen, Hollywood's Most Talented Animals, Fergie

Episode 108: Howie Mandel, Chris Hansen, Korn

Episode 109: Queen Latifah, Gerard Butler, Buckcherry

Episode 110: Mark Wahlberg, Brad Garrett, My Chemical Romance

Episode 111: Sandra Bullock, Andy Richter, Evanescence

Episode 112: Minnie Driver, Bailee Madison, Finger Eleven

Episode 113: Dan Rather, bizarre food expert Andrew Zimmern, Lloyd

Episode 114: Terry Bradshaw, Mary Lynn Rajskub, Musiq Soulchild

Episode 115: Terrence Howard, Bruce Fine, the cast of "Jersey Boys"

Episode 116: David Spade, Richard Engel, Hinder

Episode 117: Roseanne Barr, Heather Mills, James Morrison

Episode 118: Will Ferrell, Sen. Joseph Biden, Paolo Nutini

Episode 119: Nick Nolte, bug expert Rudd Kleinpaste, Guster

Episode 120: Quentin Tarantino, Pete Rose, Mika

Episode 121: Jeff Foxworthy, Charlie Engle, Kevin Lin & Ray Zahab, Dierks Bentley

Episode 122: Hilary Swank, Carlos Mencia, Gym Class Heroes

Episode 123: Campbell Brown, Will Arnett, Dave Koz feat. Johnny Mathis

Episode 124: Amy Poehler, Ricky Schroder, Ozomatli

Episode 125: Kurt Russell, Shia LaBeouf, Hilary Duff

Episode 126: Gerard Butler, Tim McGraw

Episode 127: Jennifer Love Hewitt, Brandi Carlile

Episode 128: Craig T. Nelson, Molly Shannon, Sick Puppies

Episode 129: Jeremy Piven, Jenna Fischer, John Legend

Episode 130: Anthony Hopkins, Rose McGowan, Good Charlotte

Episode 131: Jamie Lee Curtis, Jonathan Rhys-Meyers, Patty Griffin

Episode 132: Wanda Sykes, Jesse James, Rickie Lee Jones

Episode 133: Julia Louis-Dreyfus, Rep. Nancy Pelosi, Relient K

Episode 134: Rainn Wilson, Orny Adams, The Shins

Episode 135: Luke Wilson, Alexandra Wentworth, Lily Allen

Episode 136: Tim Russert, Eddie Izzard, Three Days Grace

Episode 137: Tobey Maguire, Tori Spelling, Wicked

Episode 138: Jack Black, Sanjaya, OK Go

Episode 139: Kevin Bacon, Hayden Panettiere

Episode 140: Zach Braff, Pat Summitt, Joss Stone

Episode 141: Bill Maher, Sig & Edgar Hansen, Amy Winehouse

Episode 142: Leah Remini, Adam Brody, Mavis Staples

Episode 143: Jarod Miller, Kiefer Sutherland, Macy Gray feat. Natalie Cole

Episode 144: Conan O'Brien, Venus Ramey, Kings of Leon

Episode 145: Eric Bana, Oscar De La Hoya, Kaiser Chiefs

Episode 146: Dr. Phil McGraw, Rove McManus, Patti Smith

Episode 147: Mitt Romney, D.L. Hughley, Fall Out Boy

Episode 148: Howie Mandel, Bryce Howard, Alan Jackson

Episode 149: Thomas Haden Church, 102-year-old golfer Elsie McLean, Ne-Yo

Episode 150: Mike Myers, Floyd Mayweather, The Cat Empire

Episode 151: Matthew Fox, Larry the Cable Guy, Feist

Episode 152: Antonio Banderas, Brady Barr, Aqualung

Episode 153: Cameron Diaz, 6-year-old piano prodigy Ethan Bortnick, Nelly Furtado

Episode 154: Amazing Animals With Julie Scardina, Gov. Bill Richardson, Miranda Lambert

Episode 155: Dominic Monaghan, "American Idol" finalists Melinda Doolittle, Blake Lewis & Jordin Sparks, Taylor Hicks

Episode 156: Orlando Bloom, Maria Lark, Gym Class Heroes

Episode 157: Ricki Lake, baker Marjorie Johnson, Gretchen Wilson

Episode 158: Felicity Huffman, bizarre food expert Andrew Zimmern, Dolores O'Riordan

Episode 159: Jamie Foxx, Jimmy Fallon, Peter Bjorn And John

Episode 160: Simon Cowell, 95-year-old college graduate Nola Ochs, Maroon 5

Episode 161: Demi Moore, Judd Apatow, Angelique Kidjo feat. Ziggy Marley

Episode 162: Gov. Arnold Schwarzenegger, Debra Messing, Fiction Plane

Episode 163: Kevin Costner, "American Idol" winner Jordin Sparks, Daniel Tosh

Episode 164: Dennis Miller, Ross "The Intern" Mathews, Dwight Yoakam

Episode 165: Jessica Alba, Seth Rogen, Lucinda Williams

Episode 166: George Clooney, senior-citizen band the Zimmers, Rihanna

Episode 167: Bernie Mac, Cat Deeley, Chris Cornell

Episode 168: Don Rickles, Josh Flitter, Dashboard Confessional

Episode 169: Steve Carell, Kenny Smith, The Goo Goo Dolls

Episode 170: Wanda Sykes, Mathias Sisters, John Mayer

Episode 171: Fred Thompson, Lauren Graham, Toby Keith

Episode 172: Terry Bradshaw, Shia LaBeouf, James Morrison

Episode 173: Téa Leoni, Joy Behar, Bloc Party

Episode 174: Bill Cosby, Charlie Gilpin, Aspen Nelson & Bryant Ashton, Avril Lavigne

Episode 175: Robin Williams, Chelsea Handler, Big & Rich

Episode 176: Michael Chiklis, Bruce Bowen, Sugarland

Episode 177: Samuel L. Jackson, 17-year-old reptile expert Corbin Maxey, Jesse Malin

Episode 178: John Cusack, Tavis Smiley, Lifehouse

Episode 179: Cedric the Entertainer, Chip Foose, Kelly Clarkson

Episode 180: John & Elizabeth Edwards, Maz Jobrani, The Red Jumpsuit Apparatus

Episode 181: Michael Moore, Justin Long, Mandy Moore

Episode 182: Josh Duhamel, David Willey, Jason Aldean

Episode 183: Dr. Phil McGraw, Leslie Mann, Velvet Revolver

Episode 184: Ethan Hawke, Carlos Mencia, Breaking Benjamin

Episode 185: Daniel Radcliffe, Patton Oswalt, The Decemberists

Episode 186: Adam Sandler, Nikki Blonsky, Silverchair

Episode 187: John Travolta, Tony Dungy, The Neville Brothers

Episode 188: Jessica Biel, Bill Engvall, T-Pain feat. Yung Joc

Episode 190: Bill Maher, Minnie Driver

Episode 191: Holly Hunter, Kent Couch, Ryan Adams & The Cardinals

Episode 192: Sandra Bullock, Chris Matthews, Suzanne Vega

Episode 193: Don Cheadle, Miley Cyrus, Puddle of Mudd

Episode 194: Glenn Close, Sebastian Manisalco, Marilyn Manson

Episode 195: Amazing Animals With Julie Scardina, Aaron Eckhart, Common

Episode 196: Rob Schneider as Lindsay Lohan, Rove McManus, Sum 41

Episode 197: Matt Damon, George Foreman, Stephen Stills

Episode 198: Michael Moore, Orny Adams, Perry Farrell's Satellite Party

Episode 199: Kevin James, Arctic swimmer Lewis Pugh, Katharine McPhee

Episode 200: Jennifer Lopez, Kevin Nealon, Glen Hansard & Markéta Irglová

Episode 201: Chris Tucker, Marc Anthony, The John Butler Trio

Episode 202: Heidi Klum, Anderson Cooper, Brad Paisley

Episode 203: Claire Danes, Bob Saget, Grace Potter & The Nocturnals

Episode 204: Hank Azaria, David Hasselhoff, Sharon Osbourne & Piers Morgan, Daddy Yankee

Episode 205: Michelle Pfeiffer, Jonah Hill, MIMS

Episode 206: Cuba Gooding Jr., Zac Efron, John McLaughlin

Episode 207: Seth Rogen, animal trainer Jules Sylvester, Hot Hot Heat

Episode 208: David Duchovny, Tiki Barber, Nick Thune

Episode 209: Rainn Wilson, Gordon Ramsay, Fuel

Episode 210: Drew Carey, Richard Roeper, Colbie Caillat

Episode 211: Sen. John McCain, Bill Hader, Ben Harper and the Innocent Criminals

Episode 212: Jeff Foxworthy, Maria Lark, Mat Kearney

Episode 213: Jonah Hill, Michael Cera, Christopher Mintz-Plasse, Jarod Miller, Wilco

Episode 214: Seth Green, Mike Rowe, Collective Soul

Episode 215: Dennis Miller, Capt. Ed Kiesel, Rodrigo Y Gabriela

Episode 216: Fred Thompson, Jerome Bettis, Travis Tritt

Episode 217: Daniel Radcliffe, Mark Cuban, Kings of Leon

Episode 218: Show# 3431

Episode 219: Brad Garrett, Funny Car racer Ashley Force, Cirque du Soleil

Episode 220: Denis Leary, Robert Klein, Spoon

Episode 221: Kelsey Grammer, Dan Fogler, The Bravery

Episode 222: Terry Bradshaw, Vanessa Hudgens, Michael Buble

Episode 223: Michael Douglas, Tavis Smiley, Good Charlotte