Tvheadend

hi,
i have recntly installed tvheadend on my computer in order to grab the epg from a few iptv channels (multicast udp channels).

my problem is that these channels do not publish the epg according to the standards, so TVH cannot detect them.

after a few conversations with he supplier of these channels,
i figured that each channel delivers the EPG on stream type 5 (which is different from the video or audio).

in a test that i've made, VLC also cannot detect the epg.

the PID of these services (there are several according to what i've seen) is not detected by TVH.

is there any way to get these PID's detected and make the epg ota grabbing work?

thank you!