Channel list in Program Guide

The Program Guide displayed by mythfrontend now shows only the
channels from videosources that are connected to a capturecard.
Previously, the Program Guide showed all channels in the database,
including channels that could never have been recorded because
they are from videosources not connected to a capturecard.

mythtv/libs/libmythtv/channelutil.cpp

@@ -2393,7 +2393,7 @@ ChannelInfoList ChannelUtil::LoadChannels(uint startIndex, uint count,
                   "MIN(livetvorder) livetvorder "
                   "FROM channel "
                   "LEFT JOIN channelgroup ON channel.chanid = channelgroup.chanid "
-                  "LEFT JOIN capturecard  ON capturecard.sourceid = channel.sourceid ";
+                  "INNER JOIN capturecard  ON capturecard.sourceid = channel.sourceid ";
 
     QStringList cond;
     if (ignoreHidden)