It may be antiquated now, but the old pearl of wisdom: “Don’t sit too close to the TV” was good advice in the 1960s

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Sources:
https://www.aao.org/eye-health/ask-ophthalmologist-q/can-close-tv-viewing-damage-eyes
https://www.scientificamerican.com/article/earth-talk-tv-eyesight/
http://mentalfloss.com/article/31596/will-sitting-too-close-tv-hurt-your-eyes
https://www.livescience.com/22465-does-sitting-too-close-to-the-tv-really-ruin-your-eyesight.html
http://www.nytimes.com/2005/06/07/health/the-claim-sitting-too-close-to-the-tv-is-bad-for-your-eyes.html
https://www.livescience.com/35579-3-ways-technology-affects-eyes.html
https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=DS19670609.2.49
http://visionsource.com/blog/tips-for-eliminating-computer-eye-strain
https://books.google.com/books?id=kyYDAAAAMBAJ&pg=PA89&lpg=PA89&dq=general+electric+TV+radiation+tubes&source=bl&ots=yHKRXZd0nB&sig=TN00jRyptQppoSdjmYhL5XgmKDc&hl=en&sa=X&ved=0ahUKEwjh8fTJ8ILYAhXo5YMKHR_1C1k4ChDoAQgmMAA#v=onepage&q&f=false