You've set up your TV Box Pro in internet mode @Knowhead , so you'll only be receiving the channels available in this mode. You have the option to switch to aerial mode, where you'll then be able to pick up all channels in your area (assuming you have an aerial you can connect).
Your TV Box Mini only supports internet mode, so the channels you can see are all you'll get.
See this article for details about the modes, as well as a list of the channels available: https://ee.co.uk/help/tv-sport/manage-use/modes
