If you want to use the EPG from one channel to another link, you have to copy the details of the line of the channel in the /etc/enigma2 bouquets files.

For example for RAI1,

#SERVICE 1:0:1:213f:3070:13e:820000:0:0:0:

Generally you play with such things directly on the file,

If you copy the details of the first line into another line that has only zeros, it will then use the EPG data of that first line on the second one.

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