I tryed to run DVB-T2 channels with Astrometa DVB-t2 on Ubuntu. I installed Linux firmware nonfree and media build. After this I installed w_scan. If I scan channels with w_scan I make channels.xpsf
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Astrometa DVB-T2 on Ubuntu (scan OK but not running channels)
Astrometa DVB-T2 DAB USB TV Stick Freeview HD Dongle Windows & Linux Compatible
Astrometa DVB-T2 DAB USB TV Stick Freeview HD Dongle Windows & Linux Compatible
Review // Digital HDTV Stick Tuner Receiver + FM + USB Dongle DVB-T2 / DVB-T / DVB-C
Astrometa DVB-T2 - LinuxTVWiki