I have a 43" 4K Samsung in use as a computer monitor, but all TVs that are strictly used for watching video, are 1080p.
Depends on viewing distance but personally, I'm fine with 720p under 50" then needs to be 1080p. 4K up close looks good but if the content is interesting, I don't notice the difference while watching.
Depends on viewing distance but personally, I'm fine with 720p under 50" then needs to be 1080p. 4K up close looks good but if the content is interesting, I don't notice the difference while watching.