[mythtv-users] EIT EPG updating

[James Abernathy]

I'm trying to understand the mechanism behind how Mythtv Backend updates 
the EPG when the Video source is set to EIT only.

Specifically, I have the SiliconDust HDHR Quatro setup in a clean 
install of Mythtv Light v30 (RP4) with all the backend stuff added to it 
to make a Combo FE/BE. I unchecked all the boxes for the Capture cards 
to prevent active scanning, thinking that the other backend setting for 
getting the data 60 seconds after the tuner is inactive would be 
enough.  I left it this way for an hour and no guide data.  Even when 
watching TV, it didn't update the guide data.

I change the Capture cards to make one tuner do Active scans and it 
started to get data.

Can someone explain this to me. I don't want to lockup one tuner just 
for EIT EPG data particularly when I have the HDHR on a network with 
other users.

Jim A