As promised, I'm posting some pictures of the HMV portable TV made by Fidelity, mentioned earlier. It's the same as the Fidelity TVR-120 , just re-badged HMV - His Master's Voice. There appears to be no model number on the HMV version.
The back is made of dark brown plastic. The mains lead comes with a moulded plug - unusual for 1982 - the plug pins are unsleeved. The front was presumably white originally, but now looks beige. Also some close-up pictures of the HMV logos and a picture of the 2-button remote control. I'm pretty sure the same remote was used on a Fidelity colour portable TV as well (possibly the CTV14R - ZX2000 chassis).
Other Fidelity products in my collection:
the Fidelity HF42 record player
https://www.radiomuseum.org/r/fidelity_hf42.html and the Fidelity Comet portable radio - unusually it has shortwave and Luxembourg bandspread as well as MW/LW.
https://www.radiomuseum.org/r/fidelity_comet.html