Block Feed Only—Schedule is in the monthly ITV Update and the Updated Block Feed Summary found at www.itv.myetv.org.
Teacher's guides may be available online at ITV Searchable Database of Teacher's Guide or at Teacher's Guides Available Online.
Legend: NEW=New Resource REV=Revised Resource SL=Also Available in StreamlineSC [CC]=Closed Captioned
Change Series
LESSON No. and TITLE | CHAN | DAY | DATE | START | END |
| 1. The Case of the Unknown Stink | 303 | Wed. | Sep 12, 2007 | 8:00 am | 8:58 am |
| 304 | Tue. | Nov 13, 2007 | 8:00 am | 8:58 am | |
| 306 | Wed. | Apr 30, 2008 | 8:00 am | 8:58 am | |
| 2. The Case of the Barking Dogs | 303 | Wed. | Sep 12, 2007 | 9:04 am | 10:00 am |
| 304 | Tue. | Nov 13, 2007 | 9:04 am | 10:00 am | |
| 306 | Wed. | Apr 30, 2008 | 9:04 am | 10:00 am | |
| 3. The Case of the Electrical Mystery | 303 | Wed. | Sep 12, 2007 | 10:06 am | 11:02 am |
| 304 | Tue. | Nov 13, 2007 | 10:06 am | 11:02 am | |
| 306 | Wed. | Apr 30, 2008 | 10:06 am | 11:02 am | |
| 4. The Case of the Challenging Flight | 303 | Wed. | Sep 12, 2007 | 11:08 am | 12:06 pm |
| 304 | Tue. | Nov 13, 2007 | 11:08 am | 12:06 pm | |
| 306 | Wed. | Apr 30, 2008 | 11:08 am | 12:06 pm | |
| 5. The Case of the Mysterious Red Light | 303 | Wed. | Sep 12, 2007 | 12:12 pm | 1:10 pm |
| 304 | Tue. | Nov 13, 2007 | 12:12 pm | 1:10 pm | |
| 306 | Wed. | Apr 30, 2008 | 12:12 pm | 1:10 pm | |
| 6. The Case of the "Wright Invention" | 303 | Wed. | Sep 12, 2007 | 1:16 pm | 2:14 pm |
| 306 | Thu. | Nov 29, 2007 | 8:00 am | 8:58 am | |
| 306 | Wed. | Apr 30, 2008 | 1:16 pm | 2:14 pm | |
| 7. The Case of the Inhabitable Habitat | 303 | Wed. | Sep 12, 2007 | 2:20 pm | 3:19 pm |
| 306 | Thu. | Nov 29, 2007 | 9:04 am | 10:03 am | |
| 306 | Wed. | Apr 30, 2008 | 2:20 pm | 3:19 pm | |
| 8. The Case of the Phenomenal Weather | 306 | Thu. | Nov 29, 2007 | 10:09 am | 11:08 am |
| 306 | Thu. | May 01, 2008 | 8:00 am | 8:59 am | |
| 9. The Case of the Powerful Pulleys | 306 | Thu. | Nov 29, 2007 | 11:14 am | 12:12 pm |
| 306 | Thu. | May 01, 2008 | 9:05 am | 10:03 am | |
| 10. The Case of the Shaky Quake | 306 | Thu. | Nov 29, 2007 | 12:18 pm | 1:17 pm |
| 306 | Thu. | May 01, 2008 | 10:09 am | 11:08 am | |
| 11. The Case of the Biological Biosphere | 306 | Thu. | Nov 29, 2007 | 1:23 pm | 2:22 pm |
| 306 | Thu. | May 01, 2008 | 11:14 am | 12:13 pm | |
| 12. The Case of the Galactic Vacation | 306 | Fri. | Nov 30, 2007 | 8:00 am | 8:59 am |
| 306 | Thu. | May 01, 2008 | 12:19 pm | 1:18 pm | |
| 13. The Case of the Wacky Water Cycle | 306 | Fri. | Nov 30, 2007 | 9:05 am | 10:04 am |
| 306 | Thu. | May 01, 2008 | 1:24 pm | 2:23 pm | |
| 14. The Case of the Disappearing Dirt | 306 | Fri. | Nov 30, 2007 | 10:10 am | 11:09 am |
| 306 | Thu. | May 01, 2008 | 2:25 pm | 3:24 pm | |
| 15. The Case of the Prize-Winning Plants | 306 | Fri. | Nov 30, 2007 | 11:15 am | 12:14 pm |
| 306 | Fri. | May 02, 2008 | 8:00 am | 8:59 am | |
| 16. The Case of the Radical Ride | 306 | Fri. | Nov 30, 2007 | 12:20 pm | 1:19 pm |
| 306 | Fri. | May 02, 2008 | 9:05 am | 10:04 am | |
| 17. The Case of the Great Space Exploration | 306 | Fri. | Nov 30, 2007 | 1:25 pm | 2:24 pm |
| 306 | Fri. | May 02, 2008 | 10:10 am | 11:09 am | |
| 18. The Case of the Ocean Odyssey | 306 | Fri. | Nov 30, 2007 | 2:30 pm | 3:29 pm |
| 306 | Fri. | May 02, 2008 | 11:15 am | 12:14 pm | |
| 19. The Case of the Zany Animal Antics | 306 | Fri. | May 02, 2008 | 12:20 pm | 1:19 pm |
| 20. The Case of the Technical Knockout | 306 | Fri. | May 02, 2008 | 1:25 pm | 2:24 pm |
| 21. The Case of the Physical Fitness Challenge | 306 | Fri. | May 02, 2008 | 2:30 pm | 3:29 pm |
| 22. The Case of the Mysterious Material | 306 | Mon. | May 05, 2008 | 8:00 am | 8:59 am |
| 23. The Case of the Energy Crunch | 306 | Mon. | May 05, 2008 | 9:05 am | 10:04 am |
| 24. The Case of the Deafening Sound | 306 | Mon. | May 05, 2008 | 10:10 am | 11:09 am |