When editing channel parameters in the TV Server config tool, the changed values do not appear in the channel lists (TV and radio). If you add a channel to a new group, the groupname is added to the channel number, not to the channel groups. The values are stored correctly but the lists are only updated when you change to another section and back.

h4. Steps to Reproduce
- Open the TV Server config tool and open the "TV channels" section.

- Select a TV channel and either click the "Edit" button or choose "Edit channel" from the context menu
- Change name or channel number and exit with "OK"
- The changed value(s) are not shown in the channel list

- Select a TV channel, choose "Add to group" from the context menu and select a group
- The groupname is added to the channel number

- Change to another section and change back to the "TV channels" section.
- The changed values are now shown correctly