It's pretty depressing really, now that the 'failed recording' issue and the BT WholeHome firmware fiasco has been sorted out there's nothing for us to complain about. 
Hi everyone,
Thanks for your considerable input to this issue. With the roll out of the software update to 100% of our set top boxes, we feel it’s the right time to lock this thread (although it will remain available for posterity). If you still have any issues then you’re welcome to create a new topic.
For those with a technical interest – as we mentioned before the root of the issue was found within the set top box scheduling software (common to all STB types) which led to deadlocked or “empty” events being created for some scheduled recordings, even when they had previously worked before.
Why that happened seems to have been due to an intermittent but persistent failure to deal with changes in EIT P/F information from the broadcast transmission data. The fix that has been implemented involved a significant rewrite of the scheduler code that will avoid these types of failures in the future.
We’re sorry for any frustration you’ve had with recording, and really grateful to all who contributed comments or were involved in testing – thanks!
Cheers
DanielS
