Further to this recent post (https://www.satandpcguy.com/blog/2013/01/more-information-on-sky-tv-channels-moving-satellites-and-loss-of-channels-in-some-fringe-reception-areas ), here is a complete list of channels that have moved from Astra 2B satellite to the Astra 1N satellite.
In some areas of Spain reception of some channels will have improved, as the channels used to be on a “weaker” Astra 2B south North beam signal, are now on a relatively “stronger” signal.
In some areas of Spain reception of some channels will have reduced, as the channels used to be on a “strong” Astra 2B south beam signal, are now on a relatively “weaker” signal.

Astra 1N 12090.00 V 20 Pan Europe DVB-S2 QPSK 29500 3/4
National Geographic HD UK
Comedy Central HD UK
Eden HD
Nickelodeon HD

Astra 1N 12110.00 H 21 Pan Europe DVB-S QPSK 27500 2/3
Sky Sports F1
Sky One +1
Sky Sports 1
Sky Sports 2 Ireland
Sky Sports 3
PBS U.K.
Fox U.K.
Cartoonito
TCM 2 UK
Sky Living
Comedy Central UK

Astra 1N 12148.00 H 23 Pan Europe DVB-S QPSK 27500 2/3
Sky Arts 2
Sky Atlantic
Sky Sports News
Sky Sports News Ireland
Sky Spts News
Sky Sports 1
Eurosport 2
Sky Sports 4
Fox +1 U.K.
Comedy Central Extra

Astra 1N 12168.00 V 24 Pan Europe DVB-S2 QPSK 29500 3/4
Sky Movies 007 HD / Sky Movies Showcase
Sky Drama HD
Sky Scifi/Horror HD
Sky Comedy HD

Astra 1N 12188.00 H 25 Pan Europe DVB-S2 QPSK 29500 3/4
Dave HD
Watch HD
Animal Planet HD
MTV HD UK

Astra 1N 12207.00 V 26 Pan Europe DVB-S QPSK 27500 2/3
Sky Sports 2
Sky News
Sky News Ireland
Sky One Ireland
Pick TV
Pick TV +1
Sky Two
Community Channel

Astra 1N 12226.00 H 27 Pan Europe DVB-S2 QPSK 29500 3/4
Good Food HD
Cartoon Network
Disney Cinemagic HD U.K.
Disney Channel HD UK

Astra 1N 12246.00 V 28 Pan Europe DVB-S2 QPSK 29500 3/4
Sky Action HD
NatGeo Wild HD
History HD
Crime HD

Astra 1N 12266.00 H 29 Pan Europe DVB-S2 QPSK 29500 3/4
Sky Sports News HD
ESPN America HD
Channel 5 HD

Astra 1N 12285.00 V 30 Pan Europe DVB-S QPSK 27500 2/3
Sky Oscars
Sky Arts 1
Sky One
Sky Atlantic
Sky Living
Sky Living +1
ESPN
British Eurosport
Chelsea TV
Sky Sports 2

Astra 1N 12304.00 H 31 Pan Europe DVB-S2 QPSK 29500 3/4
More 4 HD
Eurosport 2 HD

Astra 1N 12324.00 V 32 Pan Europe DVB-S2 QPSK 29500 3/4
Discovery HD UK
ESPN HD
SyFy HD UK
Sky Box Office

Astra 1N 12363.00 V 34 Pan Europe DVB-S2 QPSK 29500 3/4
Sky Sports HD 3
Sky Sports F1 HD