So We bought this TV, to replace an old one. Picture seems great, But we have had it just over a week. And we constantly have to reset the TV, so that the apps work. Never had an issue with my old one doing this. So it is getting returned. For this reason.

The TV came in but it looked like it had been used. The back of the TV looked somewhat aged like it was either on display or returned. I paid for a new one. That would have probably been overlooked but the screen has some DSE and banding. I'm looking at returning it.

Day 18 of having it. The first 17 days were really nice. Very bright and vivid colors. Great sound, and nice that I could control my TV with the Google Home mini. Today I went to the main screen of my fire stick, and noticed a black line in the top right hand corner. I got up to take a closer look, to find that about 8 pixels have died. I find that a TV having this issue within 20 days is just sad. I have a box with no evidence of damage, was very careful mounting it to my stand. I just can't believe that pixels are going out already. I replaced my Samasung 6 series LCD 1080p 52" with this and I never had one issue with that TV. I will never try with this brand ever again. BTW have tried to factory reset it and a pixel test on youtube. Still dead!

The picture quality, color is beautiful, however I have to continually unplug and plug it back in, like a reset so that the lip movement matches, catches up to the words. I experienced this problem, occasionally, with my last large screen tv also. I thought it was the network broadcasting the program. It wasn't. So now when I am not watching, I automatically unplug it. I gave it a 4 star rating because of the problem, otherwise I am enjoying watching my favorite programs on this screen.

Do not buy. This TV looks great but it works only about 50% of the time. Most days the audio is out of control and the volume gets stuck too high or too low. While the picture looks beautiful when the screen is on, a lot of times there is no picture when it boots up. I made a warranty claim for a broken pixel and Vizio was pretty good about trying to replace the first one, but the second one had more problems and ultimately I am returning this for a refund and buying a Samsung. Walmart is great. Vizio service was great too, but this product has major issues.

Picture was fantastic when I got it to work using my cell phone. The unit I got had a bad remote or IR receiver. I didn't want to use my phone as a remote all the time though. I decided to go with another set after the upset of packing it back up. But honestly I think the picture was better on this TV. Hopefully you have better luck than me.

Very good picture quality. Lives up to reviews. Made two adjustments. Using the picture button on remote change the setting to bright otherwise the colors are too dull. Also, using the menu button adjust the audio by turning on sound leveling. It adds quality to the sound so that a sound bar isn't needed.

It's an ok tv. For the price its good but there others you should spend a little extra on and you'd get a better picture and faster interface. I've seen several reviews complain about sound. Get a soundbar, powered speakers or home theater. These are not built for great sound. It looks the best in a dark room. If your room has a lot of light, it will take away from the picture.

I had a 13 year old Vizio that had fluorescent back lighting and was only HD. It had a very good picture that I could manually adjust but it was loosing brightness and there was some light leak around the top edge. I thought surely this new LED 4K set would at least equal or hopefully best the old set but I was wrong. I watch 90% streaming programing through HDMI inputs and there is no manual picture adjustment available, just picture modes like 'Vivid', Bright, Calibrated etc. These only allow Backlight and brightness adjustments but not contrast, saturation, tint. One program will look OK but the next will be so dark that it's barely watchable and I'm constantly trying to adjust the picture for each program. I have an old 22" HD set that has a better picture then this set. This set does OK with well lit sports programing or live broad cast like golf and Nascar. You can set manual color, contrast, tint if you watch the Vizio free TV channel. Wish I'd never bought this TV. That's one small mistake for man. One giant flop for Vizio.

Great picture but since the sound comes out of the rear the sound was poor. Paired it with the Vizo all-in-one sound bar and now it's a great center piece to our family room. Also, I had to buy a separate stand because the legs were too far apart to fit on our TV cabinet. Our previous Vizio had a center stand, so it easily fit. So check the width to see if it will fit your cabinet or stand. Choosing the M8 over the M7 was worth the extra $$$ for me.