In article , nightjar
wrote:

The fuse in the plug is only there to limit the current flowing in the
flex. If the flex is rated at 13 amps, then a 13 amp fuse is quite
correct. The consumption of the TV is irrelevant to the rating of the
fuse in the plug. The TV should have its own internal overcurrent
protection, matched to its actual consumption.

AIUI the OP was referring to the plug at the end of the original flex
fitted to the TV. I doubt if it would have been 1.5mm^2 flex.

--
Mike Clarke