Episode 157

Episode 158

Episode 159

Episode 160

Episode 161

Episode 162

Episode 163

Episode 164

Episode 165

Episode 166

Episode 167

Episode 168

Episode 169

Episode 170

Episode 171

Episode 172

Episode 173

Episode 174

Episode 175

Episode 176

Episode 177

Episode 178

Episode 179

Episode 180

Episode 181

Episode 182

Episode 183

Episode 184

Episode 185

Episode 186

Episode 187

Episode 188

Episode 189

Episode 190

Episode 191

Episode 192

Episode 193

Episode 194

Episode 195

Episode 196

Episode 197

Episode 198

Episode 199

Episode 200

Episode 201

Episode 202

Episode 203

Episode 204

Episode 205

Episode 206

Episode 207

Episode 208

Episode 209

Episode 210

Episode 211

Season 2

Episode 224

Talk

The Brainiacs

Season 1

Season 3

Traditionally, the cast is given clues to guess the identity of the episode's guests, and once the guests appear and are introduced, they and the cast are given a set of puzzles to solve.