Hi there
Just a heads up that the Xbox One DVB-T/T2/C USB tuner - which is widely available in the UK for around a fiver (GBP£5-6) now has improving Linux support. It was/is sold to add TV functionality to the XBox One games console, but now has Linux drivers. It used to be pretty low cost, but now the price has dropped massively. (In London I got same day delivery with Amazon Prime when I ordered two)
Drivers haven't made it into Media Build quite yet - but they are looking very good (and cope with multiple tuners). If you don't run TV Headend on your LibreElec machine, and are confident compiling your own drivers - definitely worth a look.
I've spent this evening getting two working on a Pi3 running Jessie Lite, and TV Headend as a proof of concept - and it works.
Driver details here : Xbox One DVB-T/T2/C tuner - Tvheadend