This is: The Sarah Jane Adventures: Series 2 - Episodes 3 & 4
Title: The Day of the Clown
Mon/Vil: Jeggorabax Cluster Entity/ Odd Bob the Clown/ Elijah Spellman/ Pied Piper & Clown Mannequins
Synopsis - Part 1: New girl in Bannerman Road, Rani Chandra, is being haunted by a sinister Clown - does it have anything to do with the local children who have gone missing? When Clyde's friend disappears the trail leads them to a strange circus museum - and the legend to the Pied Piper!
Synopsis - Part 2: Sarah Jane's investigation into Spellman and Odd Bob the Clown takes her to a meteorite at the Pharos Institute. But Spellman's plot to make all of Park Vale's pupils vanish leads Sarah Jane into a confrontation with her own childhood fears in a bid to save Luke. Writer: Phil Ford
Director: Michael Keeigan
Producer: Matthew Bouch
First Broadcast: 6th October 2008 (Part 1) & 13th October 2008 (Part 2)
Ratings: 0.6 Million (Part 1) & 0.76 Million (Part 2)
Duration: 27.55 (Part 1) & 28.22 (Part 2)
Cast: Sarah Jane Smith - Elisabeth Sladen
Luke Smith - Tommy Knight
Clyde Langer - Daniel Anthony
Rani Chandra - Anjli Mohindra
Gita Chandra - Mina Anwar
Haresh Chandra - Ace Bhatti
Pied Piper/ Elijah Spellman/ Odd Bob - Bradley Walsh
Dave Finn - Jem Brownlee
Tony Warner - Aaron Shosanya
Mr Cunningham - Huw Higginson
Steve Wallace - Elijah Baker
Professor Rivers - Floella Benjamin
Clown Mannequins - Alan Ruscoe & Sean Palmer
Young Sarah Jane Smith - Jessica Mogridge
Mr Smith Voice - Alexandra Armstrong
Maria Jackson Voice - Yasmin Paige