internet providers or iptv for iptv take some tests as has been advised as for internet providers no one can really answer that it may depend on where you stay and if they can provided service to your property some may promise all but it does not always work out like that,If I was recommended providers then maybe I’d be able to pick some.
even when I was with talktalk broadband and after spending quite a bit of money trying various things home plugs,
running cat5e cable from master socket to next to computer bt tests showed my line was capable of 68mb all I ever got was 19mb on a good day and it took them more than a year to eventually send out a BT engineer. And stil no joy so went with virmin they were there within a few days and all good now.