4K video with 2.39:1 aspect ratio (3840 x 1607) is by default stretched by TCL Media Player App : r/tcltvs
Cinema 21:9 LCD TV 56PFL9954H/98 | Philips
Filmmaker Notebook 2.39:1: A Storyboard Notebook Featuring 200 Pages of 2.39 :1 Storyboard Templates and College Lined Paper for Creatives (Film and TV Storyboarding) : ProMediaBooks: Amazon.de: Books
21:9 UHD TV from Samsung & LG - Film and Digital TimesFilm and Digital Times
Aspect ratio (image) - Wikipedia
The aspect ratio of a wide-screen TV is 2.39:1. What is the diagonal of a screen with are [geometry]
Philips release 2.39:1 anamorphic TV with 2560x1080p resolution - EOSHD.com - Filmmaking Gear and Camera Reviews
2.39:1 Aspect Ratio Test Pattern - YouTube
TURN YOUR EVERY DAY PROJECTOR INTO A 2.39:1 WITH OUR NEW PRO 2.39:1 SCREEN PAINT 3 QT KITS - YouTube
The Importance of Aspect Ratio in Filmmaking | Cadrage Director's Viewfinder | App for iPhone & iPad
Top 10 Things You Need to Know About Aspect Ratio, Screen Size, and Seating Distance | Page 5 | AVS Forum
Philips release 2.39:1 anamorphic TV with 2560x1080p resolution - EOSHD.com - Filmmaking Gear and Camera Reviews