Author of the OC here: yes, the TV consumes 850 mA at 12 V DC, plus the extra dollop needed for the Pi, so it's drawing about 11 Watts — less than a typical CFC

Author of the OC here: yes, the TV consumes 850 mA at 12 V DC, plus the extra dollop needed for the Pi, so it's drawing about 11 Watts — less than a typical CFC, let alone an incandescent :).