The To Be Announced issue has been reported here UK EPG, any scripts that I can run to force a full EPG download - #57 by Geoff555 and was investigated
The issue is that the metadata provider for the guide is sometimes quite late in getting the information available and then when it is available - the Plex Media Server incremental guide update is no longer looking at the data for those days. The incremental process looks at the current day and also Day + 13/ Day + 14. It appears that some of the TBAs are staying as TBAs in the guide data until closer to the actual airing date,
This has been referred to the development team - to get round the issue, you need to do occasional full refresh. The issue appears to be more on news channels
