How can i setup the IPTV EPG function (which was added in the 0.2.18-r12 release) in MAG250? I can see EPG related menu items in the menu on IP-TV channels screen, but when i select them, they just say "EPG not available". I can not find any configuration for this function (e.g. EPG source URL) in the internal portal. I can see that in code the dvbManager.GetEPGBrief() API is used to retrieve TV program, but the API documentation does not describe how to configure the source of EPG data.
The reason i am asking is because i maintain a stock internal portal based portal for an ISP. I am currently upgrading it's base from 0.2.18-r11 to the latest 0.2.18-r14. We had our own EPG implementation for IPTV channels since the time of 0.2.12-r2 release i guess. Now i am trying to decide whether i should keep our implementation, or remove it in favor of upstream implementation.
So, how the IPTV EPG feature should be used from the user/developer/ISP perspective?