[mythtv-users] Modifying channels from database

[Mattia Martinello]

Hi.
In modifying a lot of channels in the same time it should better to 
modify directly the database instead to use mythtv-setup.
For example, to modify the channel number, can I simply modify the 
"channum" field in the "channel" table of the database?
To remove one or more chanels, can I simply remove the related row from 
the "channel" table of the database?
Or I have to do something else?

Thank you very much!
Bye,
Mattia.