Are you able to remove channels after you do a channel scan with PLEX DVR?

Greetings I am debating whether or not to move from a tablo to an hdhomerun/plex setup and I was wondering about this.

I really dont need nor want a lot of the channels, just the major networks

unfortunately I don’t think Plex shows TV channels from HDhomerun, you can only tune to recorded stuff. you have to use Kodi or something else.

I was thinking just the guide data channel selection and not “live tv itself”