Public service announcement....
A TV repairer has shown a stripdown of one of the large screen HiSense sets (65" - 65A7100F, 65A7100FTUK), glued together and very tricky to change the LED back light without tearing the reflector sheet. There is apparently a knack to it - see the comments in
YouTube - "There's a reason its the cheapest instore" - Allen Fleckney TV repair
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Searching "hisense junk" on google gives similar tales which is sad as one of the first makes advertised to support the UK Freely service.Expected lifetime before landfill, about 3 years, or less...