beko model NR28C723IDW, how to get digital ?

Hi,

beko television, model NR28C723IDW, Menu doesn't contain "digital" as it DOES have built-in DVB/ freeview.

but the menu button doesnt show, and the manual does tell you how to access, but yet the menu is different to the whats shown on the manual... but at one point, the digital menu did show, but now it wont.. so what can i do to fully reset the tv before it is set up... or tell me how to fix this problem

thanks