7.52 avg 11 episodes 7.7 → 7.4 4 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | My Hero, Zero | 7.7 | 88 |
| 2 | Elementary, My Dear | 7.5 | 75 |
| 3 | Three Is a Magic Number | 8.2 | 87 |
| 4 | The Four-Legged Zoo | 6.8 | 60 |
| 5 | Ready or Not, Here I Come | 7.8 | 60 |
| 6 | I Got Six | 7.3 | 57 |
| 7 | Lucky Seven Sampson | 7.2 | 54 |
| 8 | Figure Eight | 8.0 | 71 |
| 9 | Naughty Number Nine | 7.8 | 61 |
| 10 | The Good Eleven | 7.0 | 52 |
| 11 | Little Twelvetoes | 7.4 | 57 |
8.29 avg 9 episodes 8.4 → 7.8 4 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | A Noun Is a Person, Place or Thing | 8.4 | 84 |
| 2 | Conjunction Junction | 9.1 | 150 |
| 3 | Interjections! | 9.0 | 94 |
| 4 | Verb: That's What's Happening | 8.3 | 86 |
| 5 | Lolly, Lolly, Lolly, Get Your Adverbs Here | 8.5 | 82 |
| 6 | Unpack Your Adjectives | 8.6 | 74 |
| 7 | Rufus Xavier Sarsaparilla | 7.8 | 62 |
| 8 | Busy Prepositions | 7.1 | 53 |
| 9 | The Tale of Mr. Morton | 7.8 | 58 |
7.69 avg 9 episodes 7.9 → 7.6 4 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | A Victim of Gravity | 7.9 | 50 |
| 2 | Interplanet Janet | 8.1 | 53 |
| 3 | The Body Machine | 7.3 | 46 |
| 4 | Do the Circulation | 7.7 | 44 |
| 5 | The Energy Blues | 7.5 | 49 |
| 6 | Them Not-So-Dry Bones | 7.3 | 40 |
| 7 | Electricity, Electricity | 7.9 | 58 |
| 8 | Telegraph Line | 7.9 | 44 |
| 9 | The Greatest Show on Earth (The Weather Show) | 7.6 | 14 |
7.93 avg 12 episodes 8.1 → 8.2 4 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | No More Kings | 8.1 | 70 |
| 2 | Fireworks | 7.7 | 55 |
| 3 | The Shot Heard 'Round the World | 8.6 | 70 |
| 4 | The Preamble | 8.8 | 79 |
| 5 | Elbow Room | 7.4 | 55 |
| 6 | The Great American Melting Pot | 8.4 | 57 |
| 7 | Mother Necessity | 7.3 | 54 |
| 8 | Sufferin' Till Suffrage | 8.1 | 55 |
| 9 | I'm Just a Bill | 9.2 | 154 |
| 10 | Three-Ring Government | 7.0 | 47 |
| 11 | I'm Gonna Send Your Vote to College | 6.4 | 40 |
| 12 | Presidential Minute | 8.2 | 20 |
6.40 avg 4 episodes 6.5 → 6.3
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Introduction | 6.5 | 15 |
| 2 | Hardware | 6.5 | 22 |
| 3 | Software | 6.3 | 23 |
| 4 | Number Cruncher | 6.3 | 23 |
6.62 avg 8 episodes 6.9 → 6.9 4 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Dollars and Sense | 6.9 | 36 |
| 2 | Making $7.50 Once a Week | 6.5 | 28 |
| 3 | Where the Money Goes | 6.3 | 26 |
| 4 | Tax Man Max | 6.0 | 31 |
| 5 | Walkin' on Wall Street | 6.6 | 29 |
| 6 | This for That | 6.8 | 26 |
| 7 | Tyrannosaurus Debt | 7.0 | 30 |
| 8 | The Check's in the Mail | 6.9 | 30 |
7.16 avg 12 episodes 6.4 → 7.4 3 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Report from the North Pole | 6.4 | 20 |
| 2 | The Little Things We Do | 6.9 | 19 |
| 3 | The Trash Can Band | 7.2 | 19 |
| 4 | You Oughta Be Savin' Water | 7.2 | 17 |
| 5 | The Rainforest | 7.1 | 18 |
| 6 | Save the Ocean | 7.4 | 20 |
| 7 | FatCat Blue: The Clean Rivers Song | 7.2 | 19 |
| 8 | A Tiny Urban Zoo | 7.5 | 17 |
| 9 | Solar Power to the People | 7.5 | 17 |
| 10 | Windy and the Windmills | 7.2 | 17 |
| 11 | Don't Be a Carbon Sasquatch | 6.9 | 18 |
| 12 | The 3 R's | 7.4 | 17 |
