According to the official Nickelodeon UK and Ireland and Nickelodeon HD UK websites
"What's On" schedule section, Nickelodeon UK and Ireland and Nickelodeon HD UK will be premiering and showing a brand new episode of Nickelodeon's "Nick Extra" (also sometimes known as "Nicksclusive") which will be taking Nickelodeon viewers behind the scenes of Nickelodeon's action-comedy series "Supah Ninjas" on
Saturday 14th January 2012 at 8:35pm (repeated at 9.35pm on Nick Replay UK), and again on
Sunday 15th January 2012 at 2.35pm (repeated at 3.35pm on Nick Replay UK), both straight after Nickelodeon UK and Ireland and Nickelodeon UK HD shows the Nickelodeon television movie "The Best Player":
8:35pm Nick Extra Get the inside track as we go behind-the-scenes at Nick's all-action crime-fighting show, Supah Ninjas!
Nickelodeon UK and Ireland and Nickelodeon HD UK will also be showing two episodes of
the classic Nickelodeon show "Kenan & Kel" back-to-back from 9.00pm (repeated from 10.00pm on Nick Replay UK) on
Saturday 14th January 2012 and Sunday 15th January 2012.
Nickelodeon's "Nick Extra"/"Nicksclusive" is a series of Nickelodeon shorts (Nickelodeon interstitials) which goes behind the scenes of popular Nickelodeon shows and Nickelodeon Movies.