Horrible Histories is shown on CBBC (main broadcasters in the UK), however any future episodes (including the new Series 7 coming soon) will go under the brand new logo and branding of CBBC.
Since the show was first launched in April 2009 it has been under the green, white and black CBBC logo use since September 2007. However, as CBBC moves on, all future episodes of Horrible Histories will be shown under their brand new logo:
http://www.radiotimes.com/news/2016-03-14/cbbc-unveils-colourful-rebrand-and-abstract-new-logo
It seems that CBBC is moving on, however Horrible Histories is just as popular, and with three new episodes coming this Spring, Horrible Histories is still a massive hit on CBBC, with plenty of silly stories still to come in the future of CBBC…