Recreate channel lineup

I'm in the UK. I recently reinstalled my PC and decided to install the DVR from scratch. However I think I made a mistake in selecting what channel lineup should be downloaded, as the interface on AppleTV shows the wrong channel titles on some channels.

In the DVR interface I can only see options to redownload the guide or recreate it. But I can't find the option to select an entirely new guide from a new region.

Any idea?

Wouldn't it work to delete your sources and recreate them?

Click the trash icon under your hdhomerun

That's done it. Thanks!