There will be changes to some Freeview channel numbers on the afternoon of 2 August 2017:
Children's channels will move to the range 200 - 229
News channels will move to the range 230 - 249
Text services to 250 - 259
Streamed channels 260 - 279
Adult channels 670 - 679
Further detail from the link below.
http://www.a516digital.com/p/freevie...gust-2017.html