[mythtv] DVD-T UK xmltv ids

[Joe Orton]

For BBC East / ITV Anglia from the Sandy Heath transmitter, the
differences I get from Ed's list are:

"BBC ONE","east.bbc1.bbc.co.uk","4173"
"BBC TWO","east.bbc2.bbc.co.uk","4237"
"five","channel5.co.uk","12866"
"ITV1","anglia.tv.co.uk","8258"
"ITV2","itv2.itv.co.uk","8322"
"ITV3","itv3.itv.co.uk","8291"