(Image credit: LG) When it comes to OLED TV deals , Black Friday and Cyber Monday get all of the attention. But there's a window of time in early spring where many of the most popular TVs go back on sale as brands gear up to launch their latest sets. Look no further than the LG B5 OLED. Right now, you can get the 48-inch LG B5 for just $599 at Best Buy , which is the same low price it hit during Best Buy's Black Friday sale. While the B5 isn't as bright or colorful as pricier, higher-end OLED TVs, it still delivers a sensational, OLED-driven picture. Its 48-inch screen makes it an especially good choice for people with smaller living spaces. At this price point, I'd rather have an entry-level OLED than a mid-range LED TV. Here's why. While it's not as impressive-looking as the all-new LG C6 and the flagship-level LG G5 , the B5 is nevertheless an OLED TV, which means it still comes with all of the built-in perks we've come to expect from this premium display technology.…