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| Season 4 | (Add Episode) |
Episode # ![]() |
Airdate | Title | Rating | |
| 41 | 4x01 | 11/Jan/1999 | Michael J. Fox | N/A |
| 42 | 4x02 | 12/Jan/1999 | Sandra Bernhard | N/A |
| 43 | 4x03 | 13/Jan/1999 | Tracey Ullman | N/A |
| 44 | 4x04 | 14/Jan/1999 | Gillian Anderson | N/A |
| 45 | 4x05 | 18/Jan/1999 | David Alan Grier | N/A |
| 46 | 4x06 | 19/Jan/1999 | William Baldwin | N/A |
| 47 | 4x07 | 20/Jan/1999 | Michael Stipe | N/A |
| 48 | 4x08 | 21/Jan/1999 | Carmen Electra | N/A |
| 49 | 4x09 | 25/Jan/1999 | Matthew Lillard | N/A |
| 50 | 4x10 | 26/Jan/1999 | David Cross | N/A |
| 51 | 4x11 | 27/Jan/1999 | Yasmine Bleeth | N/A |
| 52 | 4x12 | 28/Jan/1999 | D. L. Hughley | N/A |
| 53 | 4x13 | 01/Feb/1999 | George Carlin | N/A |
| 54 | 4x14 | 02/Feb/1999 | Dave Foley | N/A |
| 55 | 4x15 | 03/Feb/1999 | Kellie Martin | N/A |
| 56 | 4x16 | 04/Feb/1999 | Jerry O'Connell | N/A |
| 57 | 4x17 | 08/Feb/1999 | Melissa Gilbert | N/A |
| 58 | 4x18 | 09/Feb/1999 | Brendan Fraser | N/A |
| 59 | 4x19 | 10/Feb/1999 | Pamela Anderson, Natalie Raitano, Molly Culver | N/A |
| 60 | 4x20 | 11/Feb/1999 | Daniel Stern | N/A |
| 61 | 4x21 | 16/Feb/1999 | Melina Kanakaredes | N/A |
| 62 | 4x22 | 17/Feb/1999 | Ed McMahon | N/A |
| 63 | 4x23 | 18/Feb/1999 | Mike Judge | N/A |
| 64 | 4x24 | 01/Mar/1999 | John Tesh | N/A |
| 65 | 4x25 | 02/Mar/1999 | Eric McCormack | N/A |
| 66 | 4x26 | 03/Mar/1999 | Jeri Ryan | N/A |
| 67 | 4x27 | 04/Mar/1999 | Ryan Phillippe | N/A |
| 68 | 4x28 | 08/Mar/1999 | Ian McKellen | N/A |
| 69 | 4x29 | 09/Mar/1999 | Jon Voight | N/A |
| 70 | 4x30 | 10/Mar/1999 | Sammy Hagar | N/A |
| 71 | 4x31 | 11/Mar/1999 | Hootie & the Blowfish | N/A |
| 72 | 4x32 | 15/Mar/1999 | Peter Krause | N/A |
| 73 | 4x33 | 16/Mar/1999 | Chris Isaak | N/A |
| 74 | 4x34 | 17/Mar/1999 | John Larroquette | N/A |
| 75 | 4x35 | 18/Mar/1999 | Joseph Gordon-Levitt | N/A |
| 76 | 4x36 | 22/Mar/1999 | Jennifer Grey | N/A |
| 77 | 4x37 | 23/Mar/1999 | Norm Macdonald | N/A |
| 78 | 4x38 | 24/Mar/1999 | Sandra Bullock | N/A |
| 79 | 4x39 | 25/Mar/1999 | Janine Turner | N/A |
| 80 | 4x40 | 29/Mar/1999 | Ron Howard | N/A |
| 81 | 4x41 | 30/Mar/1999 | Omar Epps | N/A |
| 82 | 4x42 | 31/Mar/1999 | Diane Lane | N/A |
| 83 | 4x43 | 01/Apr/1999 | Stephen Baldwin | N/A |
| 84 | 4x44 | 12/Apr/1999 | Ernie Hudson | N/A |
| 85 | 4x45 | 13/Apr/1999 | Josh Charles | N/A |
| 86 | 4x46 | 14/Apr/1999 | Jackie Chan | N/A |
| 87 | 4x47 | 15/Apr/1999 | Marlee Matlin | N/A |
| 88 | 4x48 | 19/Apr/1999 | Sharon Lawrence | N/A |
| 89 | 4x49 | 20/Apr/1999 | Rob Estes | N/A |
| 90 | 4x50 | 21/Apr/1999 | Angelina Jolie | N/A |
| 91 | 4x51 | 22/Apr/1999 | David Spade | N/A |
| 92 | 4x52 | 26/Apr/1999 | Seth Green | N/A |
| 93 | 4x53 | 27/Apr/1999 | Sheryl Lee Ralph | N/A |
| 94 | 4x54 | 28/Apr/1999 | Chris Robinson | N/A |
| 95 | 4x55 | 29/Apr/1999 | Joy Behar | N/A |
| 96 | 4x56 | 10/May/1999 | Thomas Gibson | N/A |
| 97 | 4x57 | 11/May/1999 | Paula Cale | N/A |
| 98 | 4x58 | 12/May/1999 | Ted Danson | N/A |
| 99 | 4x59 | 13/May/1999 | Esai Morales | N/A |
| 100 | 4x60 | 17/May/1999 | Jane Seymour | N/A |
| 101 | 4x61 | 18/May/1999 | Robert Schimmel | N/A |
| 102 | 4x62 | 19/May/1999 | Camryn Manheim | N/A |
| 103 | 4x63 | 20/May/1999 | Ray Romano | N/A |
| 104 | 4x64 | 24/May/1999 | Patricia Richardson | N/A |
| 105 | 4x65 | 25/May/1999 | Suzanne Somers | N/A |
| 106 | 4x66 | 26/May/1999 | Natalie Portman | N/A |
| 107 | 4x67 | 27/May/1999 | Jamie Foxx | N/A |
| 108 | 4x68 | 07/Jun/1999 | Harry Connick Jr. | N/A |
| 109 | 4x69 | 08/Jun/1999 | Caroline Rhea | N/A |
| 110 | 4x70 | 09/Jun/1999 | Damon Wayans | N/A |
| 111 | 4x71 | 10/Jun/1999 | Timothy Hutton | N/A |
| 112 | 4x72 | 14/Jun/1999 | Mike Myers | N/A |
| 113 | 4x73 | 15/Jun/1999 | Rob Lowe | N/A |
| 114 | 4x74 | 16/Jun/1999 | Mike Myers | N/A |
| 115 | 4x75 | 17/Jun/1999 | Heather Graham | N/A |
| 116 | 4x76 | 21/Jun/1999 | Felicity Huffman | N/A |
| 117 | 4x77 | 22/Jun/1999 | Jimmy Kimmel | N/A |
| 118 | 4x78 | 23/Jun/1999 | Adam Sandler | N/A |
| 119 | 4x79 | 24/Jun/1999 | Richard Belzer | N/A |
| 120 | 4x80 | 28/Jun/1999 | Margaret Cho | N/A |
| 121 | 4x81 | 29/Jun/1999 | Scott Wolf | N/A |
| 122 | 4x82 | 30/Jun/1999 | Roseanne Barr | N/A |
| 123 | 4x83 | 01/Jul/1999 | Rob Schneider | N/A |
| 124 | 4x84 | 12/Jul/1999 | Adam Arkin | N/A |
| 125 | 4x85 | 13/Jul/1999 | Miss Piggy | N/A |
| 126 | 4x86 | 14/Jul/1999 | John Leguizamo | N/A |
| 127 | 4x87 | 15/Jul/1999 | Robert Klein | N/A |
| 128 | 4x88 | 19/Jul/1999 | Christa Miller | N/A |
| 129 | 4x89 | 20/Jul/1999 | David Brenner | N/A |
| 130 | 4x90 | 21/Jul/1999 | Third Anniversary Special | N/A |
| 131 | 4x91 | 22/Jul/1999 | Joely Fisher | N/A |
| 132 | 4x92 | 26/Jul/1999 | Donny Osmond | N/A |
| 133 | 4x93 | 27/Jul/1999 | Wendie Malick | N/A |
| 134 | 4x94 | 28/Jul/1999 | Vince Neil | N/A |
| 135 | 4x95 | 29/Jul/1999 | Janeane Garofalo | N/A |
| 136 | 4x96 | 02/Aug/1999 | Bebe Neuwirth | N/A |
| 137 | 4x97 | 03/Aug/1999 | Garry Marshall | N/A |
| 138 | 4x98 | 04/Aug/1999 | Denis Leary | N/A |
| 139 | 4x99 | 05/Aug/1999 | Jeffrey Tambor | N/A |
| 140 | 4x100 | 09/Aug/1999 | Dave Foley | N/A |
| 141 | 4x101 | 10/Aug/1999 | Dom Irrera | N/A |
| 142 | 4x102 | 11/Aug/1999 | Pierce Brosnan | N/A |
| 143 | 4x103 | 12/Aug/1999 | Eduardo Sanchez and Daniel Myrick | N/A |
| 144 | 4x104 | 16/Aug/1999 | Carson Daly | N/A |
| 145 | 4x105 | 17/Aug/1999 | Molly Ringwald | N/A |
| 146 | 4x106 | 18/Aug/1999 | Sarah Jessica Parker | N/A |
| 147 | 4x107 | 19/Aug/1999 | French Stewart | N/A |
| 148 | 4x108 | 23/Aug/1999 | Cheryl Ladd | N/A |
| 149 | 4x109 | 24/Aug/1999 | LL Cool J | N/A |
| 150 | 4x110 | 25/Aug/1999 | Dwight Yoakam | N/A |
| 151 | 4x111 | 26/Aug/1999 | Nia Long | N/A |
| 152 | 4x112 | 30/Aug/1999 | The Daily Show Summer Spectacular | N/A |
| 153 | 4x113 | 13/Sep/1999 | Elayne Boosler | N/A |
| 154 | 4x114 | 14/Sep/1999 | Tom Green | N/A |
| 155 | 4x115 | 15/Sep/1999 | Jason Priestley | N/A |
| 156 | 4x116 | 16/Sep/1999 | David Cross | N/A |
| 157 | 4x117 | 20/Sep/1999 | Andy Richter | N/A |
| 158 | 4x118 | 21/Sep/1999 | Donny Osmond and Marie Osmond | N/A |
| 159 | 4x119 | 22/Sep/1999 | Dave Chappelle | N/A |
| 160 | 4x120 | 23/Sep/1999 | Steve Zahn | N/A |
| 161 | 4x121 | 27/Sep/1999 | Norm Macdonald | N/A |
| 162 | 4x122 | 28/Sep/1999 | Melissa Joan Hart | N/A |
| 163 | 4x123 | 29/Sep/1999 | Richard Lewis | N/A |
| 164 | 4x124 | 30/Sep/1999 | Bruce McCulloch and Mark McKinney | N/A |
| 165 | 4x125 | 04/Oct/1999 | Greg Proops | N/A |
| 166 | 4x126 | 05/Oct/1999 | Maury Povich | N/A |
| 167 | 4x127 | 06/Oct/1999 | Brooke Shields | N/A |
| 168 | 4x128 | 07/Oct/1999 | Molly Shannon | N/A |
| 169 | 4x129 | 18/Oct/1999 | Rebecca Gayheart | N/A |
| 170 | 4x130 | 19/Oct/1999 | Steven Wright | N/A |
| 171 | 4x131 | 20/Oct/1999 | Amy Brenneman | N/A |
| 172 | 4x132 | 21/Oct/1999 | Melissa Gilbert | N/A |
| 173 | 4x133 | 25/Oct/1999 | Cathy Moriarty | N/A |
| 174 | 4x134 | 26/Oct/1999 | Louie Anderson | N/A |
| 175 | 4x135 | 27/Oct/1999 | Sarah Michelle Gellar | N/A |
| 176 | 4x136 | 28/Oct/1999 | Melanie C. | N/A |
| 177 | 4x137 | 01/Nov/1999 | Chris O'Donnell | N/A |
| 178 | 4x138 | 02/Nov/1999 | Jennifer Love Hewitt | N/A |
| 179 | 4x139 | 03/Nov/1999 | Dave Grohl | N/A |
| 180 | 4x140 | 04/Nov/1999 | Roshumba Williams | N/A |
| 181 | 4x141 | 08/Nov/1999 | Kellie Martin | N/A |
| 182 | 4x142 | 09/Nov/1999 | Kathy Griffin | N/A |
| 183 | 4x143 | 15/Nov/1999 | Christina Ricci | N/A |
| 184 | 4x144 | 16/Nov/1999 | Tori Amos | N/A |
| 185 | 4x145 | 17/Nov/1999 | Yasmine Bleeth | N/A |
| 186 | 4x146 | 18/Nov/1999 | Bill Maher | N/A |
| 187 | 4x147 | 29/Nov/1999 | Goo Goo Dolls | N/A |
| 188 | 4x148 | 30/Nov/1999 | Stephen Rea | N/A |
| 189 | 4x149 | 01/Dec/1999 | Laura San Giacomo | N/A |
| 190 | 4x150 | 02/Dec/1999 | Michael Boatman | N/A |
| 191 | 4x151 | 06/Dec/1999 | Paul Rudd | N/A |
| 192 | 4x152 | 07/Dec/1999 | Senator Bob Dole (1) | N/A |
| 193 | 4x153 | 08/Dec/1999 | Senator Bob Dole (2) | N/A |
| 194 | 4x154 | 09/Dec/1999 | Rob Schneider | N/A |
| 195 | 4x155 | 13/Dec/1999 | Joan Lunden | N/A |
| 196 | 4x156 | 14/Dec/1999 | Shannen Doherty | N/A |
| 197 | 4x157 | 15/Dec/1999 | Greatest Millennium Special | N/A |
| 198 | 4x158 | 16/Dec/1999 | George Carlin | N/A |
| 199 | 4x159 | 20/Dec/1999 | David Boreanaz | N/A |
| 200 | 4x160 | 21/Dec/1999 | Jewel | N/A |
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