Request.
In some iptv, there are some channels like (For example: Rai 1 +1 , Rai 2 +1, Rai 3 +1, Rete 4 +1, Canale 5 +1, Italia 1 +1). This channel are made in "house" and haven't got a real service reference.
If you can, you can do this:
<channel id="Rai1Plus1.it">1:0:1:FF1:3070:13E:820000:0:0:0:</channel> <!-- Rai 1 +1 -->
<channel id="Rai2Plus1.it">1:0:1:FF2:3070:13E:820000:0:0:0:</channel> <!-- Rai 2 +1 -->
<channel id="Rai3Plus1.it">1:0:1:FF3:3070:13E:820000:0:0:0:</channel> <!-- Rai 3 +1 -->
<channel id="Rete4Plus1.it">1:0:1:FF4:3070:13E:820000:0:0:0:</channel> <!-- Rete 4 +1 -->
<channel id="Canale5Plus1.it">1:0:1:FF5:3070:13E:820000:0:0:0:</channel> <!-- Canale 5 +1 -->
where
Rai1Plus1.it is Rai1 with offset +1
1:0:1:FF1:3070:13E:820000:0:0:0: -> FF1 is a fake SID of exiting tpx.
Application.
So, a settigsman, can be add this fake channel manually in lamedb and after that, assign the channelID or serv-ref on userbouquet.