Finally getting around to configuring my Xtrend ET7100 V2. Running VIX and using Freeview.

I'm sure this is newbie question-

I've tuned the box, but when I choose channel 1 I get BBC News - can I renumber so I get BBC1? BBC2 on 2, ITV on 3 etc.?

Also, the edge of the display is missing on the TV - is that a box setting or a TV setting?

thanks