Today you can save almost $300 on a refurbished Samsung 4K TV, which has dropped to an all-time low. Check out this offer and more in our roundup of the top five Editors' Choice deals we found last night and this morning. Top TV Deal Refurb Samsung 55" 4K HDR LED Smart TV Store: Walmart Price: $499.99 Shipping: $19.97 s&h Lowest By: $295 Sizable 4K TVs can come with sizable discounts if you're willing to shop for the right refurb deal. This refurbished Samsung UN55MU800D is at the best price we've seen in any condition, and an enormous $295 less than you'd pay for a new one. It features a 3840x2160 (4K) native resolution, HDR Extreme, Bluetooth, voice control, Smart TV apps, three USB ports, and four HDMI inputs. Note: A 90-day warranty applies, although it's unclear who backs it. Click here to see more TV deals. Top Audio Deal Klipsch Reference Over-Ear Headphones Store: Newegg Price: $99 via code "NEFPSCR150" Shipping: Free shipping Lowest By: $150 Expiration: May 29 There has never been anything nerdier than calling high-end headphones "reference headphones" – but as a self-confessed music nerd, it does makes this Klipsch set all the more tempting. Adding to the appeal is the $51 price drop since last summer, and the fact that you'd pay a huge $150 more elsewhere. These closed-back headphones feature 40mm drivers, in-line remote and mic, and a frequency response of 15Hz to 20kHz. Click here to see more audio deals. Top PC Accessory Deal YubiKey 4 USB Security Key with Wired 1yr Sub Store: Wired Magazine Price: $5 Lowest By: $48 If Space Year 2018 has you feeling a little on-edge about your online privacy, this bundle deal may be the ideal solution. Not only do you get the security of two-factor USB authentication in place of a password – you also get to read about all the account leaks you've dodged in your 1-year subscription to Wired Magazine. Note: The YubiKey 4 will arrive up to four weeks after your payment is processed. Click here to see more PC accessory deals. Top Security Deal Zmodo Pivot Security Camera / Smart Home Hub Store: Meh Price: $52 Shipping: $5 s&h Lowest By: $28 Expiration: May 24 This security camera/hub isn't just $28 cheaper than you'd find elsewhere (and at its best-ever price), it's also a lot cheaper than buying and training a guard dog, a security solution that's been rendered largely obsolete by these deliciously low camera prices. This smart-enabled hub features 16GB storage, a 120° field of view, and 2-way audio. Click here to see more home security deals. Top Movie Deal Hacksaw Ridge in 4K UHD Store: iTunes Price: $4.99 Lowest By: $10 Matt Zoller Seitz described Hacksaw Ridge as "inept and beautiful, stupid and amazing." If that doesn't give away that it's a Mel Gibson flick, nothing will. It garnered the kind of "decent but nothing special" review scores that can't really justify movie theater prices, but a 4K download for just $4.99? That's a $10 savings that might just make this a great midweek watch. Click here to see more movie deals.