Complex sentence: XTV technology is used by more than 20 opoerators and in more than 35 million set-top-boxes is more commonly identifiable under the names Sky + (in BSkyB) and DirecTV + (in DirecTV).
Split into simpler sentences: XTV technology is used by more than 20 operators and in more than 35 million set-top-boxes. It is more commonly identifiable under the names Sky + (in BSkyB) and DirecTV + (in DirecTV).