FrankLeigh - 44 minutes ago »
If the advice here <https://myhumax.org/forum/topic/fvp-5000t-no-programme-information-on-epg> is correct, and I assume it is, then the FVP-5000T updates the EPG daily
I think you are misreading or misunderstanding the thread.
The EPG data is transmitted continuously and the EPG on the Humax is continuously being updated as long as the Humax is not in standby.
I am guessing but I expect that if something is missing from the transmitted data, the original entry in the Humax EPG gets deleted, and replaced with No programme data, as the original in the EPG is different from what is being transmitted. Gaps in the EPG could be (probably are?) caused by gaps in the transmitted data. Once the correct data is transmitted the EPG quickly picks it up.
I think the Freeview standard requires that an EPG should be populated within a certain short time - minutes. The Humax should populate the entire EPG in 5 minutes or so.
The thread then says that the Humax EPG cache is cleared each night. So, if the Humax is left in standby, and the cache is cleared while in standby, the EPG will then be empty and any scheduled recording will be lost. This is the reason for scheduling the Humax to come on for 15 minutes each day - it is more than enough time for the entire EPG to be populated.
It is presumably easy to see this - just put the Humax into standby with no recordings overnight. Look at the EPG when you bring it out of standby in the morning.
Similarly it is the reason why the Humax comes out of standby 15 minutes before the scheduled start time of a recording - it allows the box to catch the START signal when the program starts. I do not know what happens if a recording actually starts 20 minutes early - presumably if the Humax is in standby it will not record it.