Extended Blu-ray / Extended 4K Blu-ray. (Bear in mind, the 4K is a phone pic of a TV and not a completely accurate representation of the quality on a 4K HDR display.) :
The Lord of the Rings: The Motion Picture Trilogy: Amazon.co.uk: Elijah Wood, Ian McKellen, Viggo Mortensen, Sean Astin, John Rhys-Davies, Orlando Bloom, Billy Boyd, Dominic Monaghan, Andy Serkis, Liv Tyler, Peter Jackson,
The Lord of the Rings: The Fellowship of the Ring - 4K UHD Blu-ray Ultra HD Review | High Def Digest
The Lord of the Rings: The Fellowship of the Ring - 4K UHD Blu-ray Ultra HD Review | High Def Digest
The Lord of the Rings' trilogy now available in 4K Dolby Vision & Atmos - FlatpanelsHD
Lord of the Rings trilogy releasing on 4K December 1 Entertainment | Page 31 | ResetEra
Lord of the Rings Trilogy (again) but in 4K! Anyone? - Movies, Drama & TV Series Lobby - AV Discourse Community Forum (SG)
The Lord of the Rings Trilogy 4K UHD Extended & Theatrical (2001-2003) - Page 371 - Blu-ray Forum
Lord of the Rings, Hobbit 4K Blu-ray sets: Must-own home-theater stunners | Ars Technica
4K UHD Rescan Released Today - Side by Side Comparison : r/lotr
The Lord of The Rings: The Motion Picture Trilogy – 4K UHD Blu-ray Review | HighDefDiscNews
Lord of the Rings trilogy releasing on 4K December 1 Entertainment | Page 20 | ResetEra
The 31-Disc Set of Peter Jackson's MIDDLE-EARTH ULTIMATE COLLECTOR'S EDITION Available on 4K Ultra HD and Blu-ray October 26th – We Are Movie Geeks
The Lord Of The Rings: The Motion Picture Trilogy (4K UHD Blu-ray Review) at Why So Blu?
TORn's 4K UHD Starter Guide!
Lord Of The Rings' and 'Hobbit' trilogies coming to 4K UHD Blu-ray
The Lord of the Rings Trilogy: Steelbook Collection [Theatrical and Extended Edition] [4K Ultra HD] [2001] [Blu-ray] [Region Free]: Amazon.co.uk: DVD & Blu-ray