Originally Posted by Mark C:
“That's much better, thanks ! How does that method differ for downloading the EPG data ?
65cm Lenson Heath dish, and a first class rigger who took his time to line the dish and LNB up.”
The epg is delivered in two ways
1 All at once in one big chunk, this requires tuner1 to get all the data from the Freesat transponder on Eurobird 1. This is why you lose the background video and audio after pressing guide (unless tuner 1 is recording) and why the query about signal quality from this specific transponder.
A copy of the epg is cached onto the hdd and this is constantly serviced by data transmitted along with the video and audio of the normal freesat channels. This means that at least for the next day or so the cached epg is up to date anyway. The full epg is refreshed overnight anyway by the housekeeping routines the hdr carries out.
Pressing schedule/red simply loads the cached epg from the hdd which is near instantaneous. No tuner is needed, if tuner 1 is committed to a recording pressing guide does the same as schedule/red.
The cached epg can be accessed at almost any time to set a recording. For instance while recording two and watching a third existing recording (or a third live channel from the ones that are available with the current pair of recordings).
Really you only need guide when starting with an empty epg after a factory reset. Once fully populated you can simply use the cached one.