channel_icons.pl: blocked callsign on channel 4 uk

[Stuart Auchterlonie]

After selecting the correct icon from the provided list for channel 4 (uk) i get the message

This combination of channel and icon has been blocked by the MythTV admins.
The most common reason for this is that there is a better match available.

Blocked:  callsign

Relevant info from the DB

mysql> select callsign, xmltvid, serviceid, transportid, networkid from channel join dtv_multiplex on channel.mplexid=dtv_multiplex.mplexid where chanid=1004;
+-----------+---------+-----------+-------------+-----------+
| callsign  | xmltvid | serviceid | transportid | networkid |
+-----------+---------+-----------+-------------+-----------+
| Channel 4 |         |      8384 |        8197 |      9018 |
+-----------+---------+-----------+-------------+-----------+

[xris]

This should be fixed now. I've adjusted the script to be more picky about callsigns, and ignore ones that aren't valid (like contain whitespace). Have also cleaned up the db to remove certain blocks, etc.