Claire feared her 100-lb. dog Olaf would never accept tiny Tank — until one viral video captured a surprising breakthrough in their budding friendship Ashley Vega is a writer-reporter at PEOPLE.

TV resolutions are a jumble of letters and numbers like 4K, 8K, 1080p and UHD, among others. Most new TVs are 4K, but is that the same as UHD? Is a 8K TV twice as good as a 4K TV? Spoiler for ...