I understand it is required as follow:
SID PMTPID STATIC KEY CHANNEL Frequency
0001 0020 A0 21 23 -- 35 46 14 -- NTV 42°East (11892H 12800-5/6)
0001 0020 10 00 00 -- 00 00 00 -- TV 8 Turkey - 42°E (11830/H/ 6666-3/4)
0001 0020 1A EB 2E -- F5 3D 00 -- FOX Sports Middle East, (11021, H, 2894, 7/
Eutelsat W2, 16E

During football live broadcating the channels dimmed and back at end of football matches.

Some body says that is because they shared in same provider (SID and PMTPID)
and advised me to erase Because TV8 and NTV has the same ECM.

I need to know what could be behind this problem

My best regards and sorry if my English is not so OK!

Thanks.