Or use this Portable TV plugged in to Power adapter.
SOYAR KCR 14 Inch Portable Digital TV DVB-T2,with Power Adapter and 12Volt
Desobry 14 inch Portable TV with Antenna 1080P freeview outdoor tv with DVB/T2 Tuner Rechargeable Battery Operated Mini TV LCD,Built-in Stand,HDMI Input,USB,AV
Rawblue 14 Inch Portable Digital ATSC TFT HD Screen Freeview LED TV for Car,Caravan,Camping,Outdoor or Kitchen.Built-in Battery Television/Monitor with Multimedia Player Support USB/FM
10/14 inch Portable 1080P HD TV Freeview HDMI Digital Television Player UK Plug
14 Inch Portable Digital TV DVB-T2,with Power Adapter and 12Volt car charge,AV I
Lightweight 14-Inch Portable TV with Built-in Battery - Enjoy Anytime, Anywhere
