Life with Derek — Season 4
- 1 Two Kisses One Party 2008-07-19
- 2 Open Mic Plight 2008-07-27
- 3 Just Friends 2008-08-12
- 4 March Break 2008-08-26
- 5 6 1/2 2008-11-04
- 6 Derek Denies Denial 2008-09-12
- 7 Happy New Schoolyear 2008-10-07
- 8 No Secrets 2008-10-28
- 9 Take A Stepkid to Work Day 2009-03-11
- 10 No More Games 2008-12-02
- 11 How I Met Your Stepbro 2008-12-02
- 12 Casey & Ralph?! 2008-12-16
- 13 Tuesday Afternoon Fever 2008-12-30
- 14 Teddy's Back 2008-11-18
- 15 Rude Awakenings 2009-03-04
- 16 Truman's Last Chance 2009-03-18
- 17 Surprise! 2009-03-25
- 18 Futuritis 2009-03-25
Life with Derek