Life with Derek: Season 4
This season started on July 19, 2008. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|
| 1 | Two Kisses One Party | |
| 2 | Open Mic Plight · 30 min | |
| 3 | Just Friends · 30 min | |
| 4 | March Break | |
| 5 | 6 1/2 · 30 min | |
| 6 | Derek Denies Denial · 30 min | |
| 7 | Happy New Schoolyear | |
| 8 | No Secrets | |
| 9 | Take A Stepkid to Work Day | |
| 10 | No More Games | |
| 11 | How I Met Your Stepbro | |
| 12 | Casey & Ralph?! | |
| 13 | Tuesday Afternoon Fever | |
| 14 | Teddy's Back | |
| 15 | Rude Awakenings · 30 min | |
| 16 | Truman's Last Chance | |
| 17 | Surprise! | |
| 18 | Futuritis | |
