Sorry you have built in digital on the tv
OK the amplifier wont solve issues to do with reception of digital broadcasts the bandwidth to amplify is much different to analogue tv and although it may have a marginal affect it wont iron out problems and in any case amplifys the noise too, and just causes more problems than it was initially intended
You could have one of 2 problems here the software that controls the dvb-t tuner is corrupt however its my guess this is ok or the reception is not up to the mark
You will need to have that aerial rechecked or its cabling or both, also the aerial plug needs to be checked to make sure the braid and the inner lead are apart (you can do this)
The reason why now the set has done a jig with the allocation of channels is the MUX (multiplex) for the tuner and the set has lost its referencing and is picking other transmitters to allocate the channels on because of the booster, just remove it and go back to what I said as I said its just causing more issues
To rule out the software of the set it would need to be tried on another known good aerial and if reception is good and no pixellation the software is good, it would also rule out the set too,if it starts pixellation the software is corrupt and will need reinstalling or upgrading usually via the cam input
Hope you understand if you dont please let me know
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