@Chris9831
Such devices certainly exist, but are notoriously unsatisfactory in actual use. I'd suggest you look at the various YouTube videos on the subject, and only purchase from a supplier with a good returns policy.
The Sky system for wireless delivery of UHD to an individual television set is the Stream puck.
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Sky Glass 55" (on ethernet) & two Stream Pucks (one ethernet / one WiFi)
BT Halo 3+ Ultrafast FTTP (500Mbs), BT Smart Hub 2
