40 channels in Sky's HD pack will ‘swap' positions in the EPG with their Standard Definition (SD) counterparts. So, for example, HD subscribers will find Sky 1 HD at #106, with Sky 1 moving to #170.
That's going to become Sky Thriller HD, which is actually a change back from a previous swap. And the third channel that is changing is Sky Family, on number 306. That's going to turn into Sky Kid ...