I just installed MC25 as a new user, but despite several attempts cannot get all the UK channels.
I'm using an Intel i5 HP laptop on which Media Portal 2 (MP2) runs quite happily using a dual DVB-T USB PlusTV stick.
After first stopping the MP2-Server service, I get the following results...
Channels tuned via JRiver...
see attachment 'JRiver Manage Channels.jpg'
…, in which you can see lots of gaps in the channel numbering, e.g. channels 2, 4, 5, 9, 10, 11, 12, 15, 16, 18, 19, 21, …, etc.
Compare this with a list of the channels available in Media Portal 2 using the same hardware...
see attachments 'MP2 Channels ([1-3]).jpg'
..., in which you can see that only channel 7 (the decommissioned BBC THREE) is missing between 1 and 50.
I’m not sure it will be of much help, but just in case information relating to the missing channels might be of interest I’ve also attached a zip file containing tuning details of TV channels and Radio Stations from MP2.
Meanwhile, I shall continue to use MP2 before I purchase a JRiver license...