EPG: "to be announced"?

yeah its nothing with the pull or the source we use... it means the network/channel provider hasnt finialized a schedule for that block of time... you often see this on your tv guide on cable/satellite as well.
 
So it says "Importing guide from clients Golden Premier" for like ten minutes. Then when it does load, 90 percent of the guide is blank. Is there something Inneed to adjust? It was never like this before. Thanks for any insight