At the moment, this is a functional channel list. I'll work on something nicer soon.
101 BBC 1 <your local region>
102 BBC 2 <your (country) region>
103 ITV1 <your local region> (HD for some progs via red button ... on HD receivers)
104 Channel 4
105 Five
106 BBC THREE
107 BBC FOUR
108 BBC HD (HD receivers only)
110 BBC ALBA
113 ITV2
114 ITV2+1
115 ITV3
116 ITV3+1
117 ITV4
118 ITV4+1
120 S4C Digidol
121 Channel 4 + 1
122 E4
123 E4 + 1
124 More4
125 More4 + 1
135 Zone Romantica
136 Zone Reality
137 Zone Thriller
138 Zone Horror
139 Zone Horror+1
140 BET
141 BET+1
200 BBC NEWS
201 BBC Parliament
202 S4C2
203 Al Jazeera Eng
204 euronews
205 France 24
206 Russia Today
207 CNN
208 Bloomberg TV
209 NHK World TV [new]
300 Film4
301 Film4 + 1
302 True Movies
303 True Movies 2
304 Movies4Men
306 Movies4Men2
308 Simply Movies
400 Wedding TV
401 Wedding TV+1
402 Information TV
403 RURAL TV
450 Men and Motors
451 Audi Channel
500 Chart Show TV
501 The Vault
502 Scuzz
504 B4U Music
509 Zee Music
513 9XM
514 CLUBLAND TV
600 CBBC Channel
601 CBeebies
602 CITV
603 POP
604 POPGirl
605 Tiny POP
606 Kix!
650 Teachers TV
662 9X
690 Inspiration TV
691 DAYSTAR TV
700 BBC Radio 1 (radio)
701 BBC 1Xtra (radio)
702 BBC Radio 2 (radio)
703 BBC Radio 3 (radio)
704 BBC Radio 4 FM (radio)
705 BBC R5L (radio)
706 BBC R5SX (radio; only broadcasts when required)
707 BBC 6Music (radio)
708 BBC Radio 7 (radio)
709 BBC Asian Net (radio)
710 BBC Radio 4 LW (radio)
711 BBC World Sv (radio)
712 BBC R Scotland (radio)
713 BBC RnGaidheal (radio)
714 BBC R Wales (radio)
715 BBC R Cymru (radio)
716 BBC R Ulster (radio)
718 BBC Radio London (radio, only available for London postcodes)
719 95.8CapitalFM (radio) [was "Capital 98.5"]
720 Choice FM (radio)
721 Classic FM (radio)
722 Gold (radio)
723 XFM (radio)
724 Absolute Radio (radio)
725 AbsoluteC.Rock (radio)
726 AbsoluteXtreme (radio)
727 NME (radio)
728 WRN (radio)
729 JazzFM (radio)
730 PlanetRock (radio)
750 RTE Radio 1 (radio)
751 RTE 2fm (radio)
752 RTE Lyric fm (radio)
753 RTE RnaG (radio)
777 Insight Radio (radio)
786 BFBS Radio (radio)
790 TWR (radio)
800 QVC
801 price-drop tv
802 bid tv
803 Pitch TV
804 Pitch World
805 Gems TV1
806 TV Shop
807 Shop On TV
808 JML HOME & DIY
809 JML
810 JML COOKSHOP
811 Thane Direct
[gone: "Best Direct" (813)]
816 Ideal World
851 Netplay TV
852 SMART LIVE TV
861 Gala TV
950 BBC 1 London
951 BBC 1 CI
952 BBC 1 E Mids
953 BBC 1 East (E)
954 BBC 1 East (W)
955 BBC 1 N West
956 BBC 1 NE & C
957 BBC 1 NI
956 BBC 1 South
958 BBC 1 Oxford
959 BBC 1 S East
960 BBC 1 Scotland
962 BBC 1 S West
963 BBC 1 W Mids
964 BBC 1 Wales
965 BBC 1 West
966 BBC 1 Yorks
967 BBC 1 EYrks&L
968 BBC 2 England
969 BBC 2 NI
970 BBC 2 Scotland
971 BBC 2 W
986 Teletext [data channel (ITV Teletext)]
You will find your local BBC 1 and BBC 2 region missing from the list. It is 'mapped in' as channels 101 and 102 respectively.