The 20th episode of The Sarah Jane Adventures airs CBBC, starring Elisabeth Sladen (Doctor Who). 
The 20th episode of The Sarah Jane Adventures airs CBBC, starring Elisabeth Sladen (Doctor Who).
The 21st episode of The Sarah Jane Adventures airs CBBC, starring Elisabeth Sladen (Doctor Who).
The 22nd episode of The Sarah Jane Adventures airs CBBC, starring Elisabeth Sladen (Doctor Who). Nicholas Courtney reprises his fan-favorite Doctor Who role of the Brigadier.
The 23rd episode of The Sarah Jane Adventures airs CBBC, starring Elisabeth Sladen (Doctor Who). Nicholas Courtney makes his final appearance as the Brigadier in the second season finale.
The 24th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). This is the third season premiere.
The 25th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 26th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 27th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 28th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). David Tennant (Doctor Who) and Nigel Havers guest star.
The 29th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). David Tennant (Doctor Who) and Nigel Havers guest star.
The 30th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 31st episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 32nd episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). Suranne Jones guest stars.
The 33rd episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). Suranne Jones guest stars.
The 34th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 35th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). This episode concludes the third season.
The 36th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 37th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). This episode, concluding the third season, also marks the end of Tommy Knight’s run as a series regular.
The 39th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 40th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). Matt Smith and Katy Manning guest star.
The 41st episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). Matt Smith and Katy Manning guest star.
The 42nd episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 43rd episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 44th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 45th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 46th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 47th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). Tommy Knight returns in the season four finale.
The 48th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).
The 49th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who). Sinead Michael joins the cast.
The 50th episode of The Sarah Jane Adventures airs on CBBC, starring Elisabeth Sladen (Doctor Who).