| Show | The World Of Dr. Know-It-All Air Pressure All Around Us |
| Demi Moore | ... | Becky |
| Dana Carvey | ... | Tommy |
| Phil Hartman | ... | Roy Huber /Dr. Know-It-All |
| Kevin Nealon | ... | announcer Voice |
| Don Pardo | ... | announcer Voice |
⁕In reruns, an exchange between Phil Hartman and Demi Moore is replaced with the dress rehearsal version. In the live show, Phil accidentally answers his own question.
♬Johnny Pearson - "Jolly Farmer"