Hi there

I understand wherr your coming from.  I leave my TV in YouView mode, as im too lazy to disable and re-enable and it annoys family members too of the different EPGs.

But you can enable/disable without factory resetting the TV.

To disable YouView

1. Press [Home] button on the remote control
2. Go to 'Settings'
3. Go to 'Channel Setup'
4. Go to 'YouView Setup'
5. Select 'Disable YouView'
6. Select 'Yes' to confirm

Same process to re-enable it again

Cheers